Home / 102,717.47-141,840.28-64,543.16

Finding the Fourth Proportional to 102,717.47, 141,840.28 and 64,543.16

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Solution

The fourth proportional to 102,717.47, 141,840.28 and 64,543.16 is: 89,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,717.47 : 141,840.28 = 64,543.16 : x
  2. Step 2: Convert to fraction form
    102,717.47/141,840.28 = 64,543.16/x
  3. Step 3: Cross multiply
    102,717.47x = 141,840.28 × 64,543.16
  4. Step 4: Simplify right side
    102,717.47x = 9,154,820,321.76
  5. Step 5: Solve for x
    x = 9,154,820,321.76/102,717.47
  6. Step 6: Final answer
    x = 89,126.22

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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.