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Finding the Fourth Proportional to 104,250, 143,864.19 and 56,502.12

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Solution

The fourth proportional to 104,250, 143,864.19 and 56,502.12 is: 77,972.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,250 : 143,864.19 = 56,502.12 : x
  2. Step 2: Convert to fraction form
    104,250/143,864.19 = 56,502.12/x
  3. Step 3: Cross multiply
    104,250x = 143,864.19 × 56,502.12
  4. Step 4: Simplify right side
    104,250x = 8,128,631,727.08
  5. Step 5: Solve for x
    x = 8,128,631,727.08/104,250
  6. Step 6: Final answer
    x = 77,972.49

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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.