Home / 153,417.09-211,752.87-88,875.90

Finding the Fourth Proportional to 153,417.09, 211,752.87 and 88,875.90

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Solution

The fourth proportional to 153,417.09, 211,752.87 and 88,875.90 is: 122,670.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,417.09 : 211,752.87 = 88,875.90 : x
  2. Step 2: Convert to fraction form
    153,417.09/211,752.87 = 88,875.90/x
  3. Step 3: Cross multiply
    153,417.09x = 211,752.87 × 88,875.90
  4. Step 4: Simplify right side
    153,417.09x = 18,819,726,898.83
  5. Step 5: Solve for x
    x = 18,819,726,898.83/153,417.09
  6. Step 6: Final answer
    x = 122,670.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.