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Finding the Fourth Proportional to 157,375.32, 216,949.28 and 108,903.40

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Solution

The fourth proportional to 157,375.32, 216,949.28 and 108,903.40 is: 150,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,375.32 : 216,949.28 = 108,903.40 : x
  2. Step 2: Convert to fraction form
    157,375.32/216,949.28 = 108,903.40/x
  3. Step 3: Cross multiply
    157,375.32x = 216,949.28 × 108,903.40
  4. Step 4: Simplify right side
    157,375.32x = 23,626,514,219.55
  5. Step 5: Solve for x
    x = 23,626,514,219.55/157,375.32
  6. Step 6: Final answer
    x = 150,128.46

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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.