Home / 103,654.15-155,292.59-71,997.32

Finding the Fourth Proportional to 103,654.15, 155,292.59 and 71,997.32

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Solution

The fourth proportional to 103,654.15, 155,292.59 and 71,997.32 is: 107,864.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,654.15 : 155,292.59 = 71,997.32 : x
  2. Step 2: Convert to fraction form
    103,654.15/155,292.59 = 71,997.32/x
  3. Step 3: Cross multiply
    103,654.15x = 155,292.59 × 71,997.32
  4. Step 4: Simplify right side
    103,654.15x = 11,180,650,864.08
  5. Step 5: Solve for x
    x = 11,180,650,864.08/103,654.15
  6. Step 6: Final answer
    x = 107,864.96

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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.