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Finding the Fourth Proportional to 162,421.23, 224,142.05 and 90,799.72

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Solution

The fourth proportional to 162,421.23, 224,142.05 and 90,799.72 is: 125,304.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,421.23 : 224,142.05 = 90,799.72 : x
  2. Step 2: Convert to fraction form
    162,421.23/224,142.05 = 90,799.72/x
  3. Step 3: Cross multiply
    162,421.23x = 224,142.05 × 90,799.72
  4. Step 4: Simplify right side
    162,421.23x = 20,352,035,046.87
  5. Step 5: Solve for x
    x = 20,352,035,046.87/162,421.23
  6. Step 6: Final answer
    x = 125,304.03

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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.