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Finding the Fourth Proportional to 162,478.64, 224,241.41 and 90,862.70

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Solution

The fourth proportional to 162,478.64, 224,241.41 and 90,862.70 is: 125,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,478.64 : 224,241.41 = 90,862.70 : x
  2. Step 2: Convert to fraction form
    162,478.64/224,241.41 = 90,862.70/x
  3. Step 3: Cross multiply
    162,478.64x = 224,241.41 × 90,862.70
  4. Step 4: Simplify right side
    162,478.64x = 20,375,179,070.36
  5. Step 5: Solve for x
    x = 20,375,179,070.36/162,478.64
  6. Step 6: Final answer
    x = 125,402.20

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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.