Home / 142,391.93-213,587.89-53,665.34

Finding the Fourth Proportional to 142,391.93, 213,587.89 and 53,665.34

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Solution

The fourth proportional to 142,391.93, 213,587.89 and 53,665.34 is: 80,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,391.93 : 213,587.89 = 53,665.34 : x
  2. Step 2: Convert to fraction form
    142,391.93/213,587.89 = 53,665.34/x
  3. Step 3: Cross multiply
    142,391.93x = 213,587.89 × 53,665.34
  4. Step 4: Simplify right side
    142,391.93x = 11,462,265,534.63
  5. Step 5: Solve for x
    x = 11,462,265,534.63/142,391.93
  6. Step 6: Final answer
    x = 80,498.00

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1.5x scale

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.