Home / 102,722.16-141,756.57-62,428.40

Finding the Fourth Proportional to 102,722.16, 141,756.57 and 62,428.40

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Solution

The fourth proportional to 102,722.16, 141,756.57 and 62,428.40 is: 86,151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,722.16 : 141,756.57 = 62,428.40 : x
  2. Step 2: Convert to fraction form
    102,722.16/141,756.57 = 62,428.40/x
  3. Step 3: Cross multiply
    102,722.16x = 141,756.57 × 62,428.40
  4. Step 4: Simplify right side
    102,722.16x = 8,849,635,145.81
  5. Step 5: Solve for x
    x = 8,849,635,145.81/102,722.16
  6. Step 6: Final answer
    x = 86,151.18

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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.