Home / 157,748.31-217,683.05-86,124.06

Finding the Fourth Proportional to 157,748.31, 217,683.05 and 86,124.06

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Solution

The fourth proportional to 157,748.31, 217,683.05 and 86,124.06 is: 118,845.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,748.31 : 217,683.05 = 86,124.06 : x
  2. Step 2: Convert to fraction form
    157,748.31/217,683.05 = 86,124.06/x
  3. Step 3: Cross multiply
    157,748.31x = 217,683.05 × 86,124.06
  4. Step 4: Simplify right side
    157,748.31x = 18,747,747,628.56
  5. Step 5: Solve for x
    x = 18,747,747,628.56/157,748.31
  6. Step 6: Final answer
    x = 118,845.95

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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.