Home / 142,741,351.90-213,872,879.40-122,174,585.20

Finding the Fourth Proportional to 142,741,351.90, 213,872,879.40 and 122,174,585.20

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Solution

The fourth proportional to 142,741,351.90, 213,872,879.40 and 122,174,585.20 is: 183,057,186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,741,351.90 : 213,872,879.40 = 122,174,585.20 : x
  2. Step 2: Convert to fraction form
    142,741,351.90/213,872,879.40 = 122,174,585.20/x
  3. Step 3: Cross multiply
    142,741,351.90x = 213,872,879.40 × 122,174,585.20
  4. Step 4: Simplify right side
    142,741,351.90x = 26,129,830,326,224,628
  5. Step 5: Solve for x
    x = 26,129,830,326,224,628/142,741,351.90
  6. Step 6: Final answer
    x = 183,057,186.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.