Home / 187,789.28-281,487.08-69,385.10

Finding the Fourth Proportional to 187,789.28, 281,487.08 and 69,385.10

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Solution

The fourth proportional to 187,789.28, 281,487.08 and 69,385.10 is: 104,004.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,789.28 : 281,487.08 = 69,385.10 : x
  2. Step 2: Convert to fraction form
    187,789.28/281,487.08 = 69,385.10/x
  3. Step 3: Cross multiply
    187,789.28x = 281,487.08 × 69,385.10
  4. Step 4: Simplify right side
    187,789.28x = 19,531,009,194.51
  5. Step 5: Solve for x
    x = 19,531,009,194.51/187,789.28
  6. Step 6: Final answer
    x = 104,004.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.