Home / 102,489.42-141,501.18-64,301.28

Finding the Fourth Proportional to 102,489.42, 141,501.18 and 64,301.28

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Solution

The fourth proportional to 102,489.42, 141,501.18 and 64,301.28 is: 88,777.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,489.42 : 141,501.18 = 64,301.28 : x
  2. Step 2: Convert to fraction form
    102,489.42/141,501.18 = 64,301.28/x
  3. Step 3: Cross multiply
    102,489.42x = 141,501.18 × 64,301.28
  4. Step 4: Simplify right side
    102,489.42x = 9,098,706,995.51
  5. Step 5: Solve for x
    x = 9,098,706,995.51/102,489.42
  6. Step 6: Final answer
    x = 88,777.04

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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.