Home / 157,747.26-217,689.57-86,127.06

Finding the Fourth Proportional to 157,747.26, 217,689.57 and 86,127.06

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Solution

The fourth proportional to 157,747.26, 217,689.57 and 86,127.06 is: 118,854.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,747.26 : 217,689.57 = 86,127.06 : x
  2. Step 2: Convert to fraction form
    157,747.26/217,689.57 = 86,127.06/x
  3. Step 3: Cross multiply
    157,747.26x = 217,689.57 × 86,127.06
  4. Step 4: Simplify right side
    157,747.26x = 18,748,962,656.76
  5. Step 5: Solve for x
    x = 18,748,962,656.76/157,747.26
  6. Step 6: Final answer
    x = 118,854.44

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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.