Home / 135,513.17-187,001.88-74,259

Finding the Fourth Proportional to 135,513.17, 187,001.88 and 74,259

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Solution

The fourth proportional to 135,513.17, 187,001.88 and 74,259 is: 102,473.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,513.17 : 187,001.88 = 74,259 : x
  2. Step 2: Convert to fraction form
    135,513.17/187,001.88 = 74,259/x
  3. Step 3: Cross multiply
    135,513.17x = 187,001.88 × 74,259
  4. Step 4: Simplify right side
    135,513.17x = 13,886,572,606.92
  5. Step 5: Solve for x
    x = 13,886,572,606.92/135,513.17
  6. Step 6: Final answer
    x = 102,473.97

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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.