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Finding the Fourth Proportional to 162,392.40, 224,100.72 and 90,772.20

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Solution

The fourth proportional to 162,392.40, 224,100.72 and 90,772.20 is: 125,265.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,392.40 : 224,100.72 = 90,772.20 : x
  2. Step 2: Convert to fraction form
    162,392.40/224,100.72 = 90,772.20/x
  3. Step 3: Cross multiply
    162,392.40x = 224,100.72 × 90,772.20
  4. Step 4: Simplify right side
    162,392.40x = 20,342,115,375.98
  5. Step 5: Solve for x
    x = 20,342,115,375.98/162,392.40
  6. Step 6: Final answer
    x = 125,265.19

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1.5x scale

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.