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Finding the Fourth Proportional to 162,765.40, 224,611.02 and 90,165.30

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Solution

The fourth proportional to 162,765.40, 224,611.02 and 90,165.30 is: 124,425.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,765.40 : 224,611.02 = 90,165.30 : x
  2. Step 2: Convert to fraction form
    162,765.40/224,611.02 = 90,165.30/x
  3. Step 3: Cross multiply
    162,765.40x = 224,611.02 × 90,165.30
  4. Step 4: Simplify right side
    162,765.40x = 20,252,120,001.61
  5. Step 5: Solve for x
    x = 20,252,120,001.61/162,765.40
  6. Step 6: Final answer
    x = 124,425.22

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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.