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Finding the Fourth Proportional to 145,398.60, 200,614.22 and 88,789.32

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Solution

The fourth proportional to 145,398.60, 200,614.22 and 88,789.32 is: 122,507.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,398.60 : 200,614.22 = 88,789.32 : x
  2. Step 2: Convert to fraction form
    145,398.60/200,614.22 = 88,789.32/x
  3. Step 3: Cross multiply
    145,398.60x = 200,614.22 × 88,789.32
  4. Step 4: Simplify right side
    145,398.60x = 17,812,400,176.13
  5. Step 5: Solve for x
    x = 17,812,400,176.13/145,398.60
  6. Step 6: Final answer
    x = 122,507.37

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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.