Home / 104,068.38-143,613.32-56,320.68

Finding the Fourth Proportional to 104,068.38, 143,613.32 and 56,320.68

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Solution

The fourth proportional to 104,068.38, 143,613.32 and 56,320.68 is: 77,721.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,068.38 : 143,613.32 = 56,320.68 : x
  2. Step 2: Convert to fraction form
    104,068.38/143,613.32 = 56,320.68/x
  3. Step 3: Cross multiply
    104,068.38x = 143,613.32 × 56,320.68
  4. Step 4: Simplify right side
    104,068.38x = 8,088,399,839.46
  5. Step 5: Solve for x
    x = 8,088,399,839.46/104,068.38
  6. Step 6: Final answer
    x = 77,721.97

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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.