Home / 99,132.48-136,801.12-54,420.16

Finding the Fourth Proportional to 99,132.48, 136,801.12 and 54,420.16

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Solution

The fourth proportional to 99,132.48, 136,801.12 and 54,420.16 is: 75,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,132.48 : 136,801.12 = 54,420.16 : x
  2. Step 2: Convert to fraction form
    99,132.48/136,801.12 = 54,420.16/x
  3. Step 3: Cross multiply
    99,132.48x = 136,801.12 × 54,420.16
  4. Step 4: Simplify right side
    99,132.48x = 7,444,738,838.58
  5. Step 5: Solve for x
    x = 7,444,738,838.58/99,132.48
  6. Step 6: Final answer
    x = 75,098.89

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1.5x scale

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.