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Finding the Fourth Proportional to 157,087.52, 216,698.12 and 93,380

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Solution

The fourth proportional to 157,087.52, 216,698.12 and 93,380 is: 128,815.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,087.52 : 216,698.12 = 93,380 : x
  2. Step 2: Convert to fraction form
    157,087.52/216,698.12 = 93,380/x
  3. Step 3: Cross multiply
    157,087.52x = 216,698.12 × 93,380
  4. Step 4: Simplify right side
    157,087.52x = 20,235,270,445.60
  5. Step 5: Solve for x
    x = 20,235,270,445.60/157,087.52
  6. Step 6: Final answer
    x = 128,815.26

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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.