Home / 157,936.52-217,952.42-86,316.52

Finding the Fourth Proportional to 157,936.52, 217,952.42 and 86,316.52

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Solution

The fourth proportional to 157,936.52, 217,952.42 and 86,316.52 is: 119,116.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,936.52 : 217,952.42 = 86,316.52 : x
  2. Step 2: Convert to fraction form
    157,936.52/217,952.42 = 86,316.52/x
  3. Step 3: Cross multiply
    157,936.52x = 217,952.42 × 86,316.52
  4. Step 4: Simplify right side
    157,936.52x = 18,812,893,988.40
  5. Step 5: Solve for x
    x = 18,812,893,988.40/157,936.52
  6. Step 6: Final answer
    x = 119,116.81

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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.