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Finding the Fourth Proportional to 166,685.29, 230,023.95 and 90,202.71

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Solution

The fourth proportional to 166,685.29, 230,023.95 and 90,202.71 is: 124,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,685.29 : 230,023.95 = 90,202.71 : x
  2. Step 2: Convert to fraction form
    166,685.29/230,023.95 = 90,202.71/x
  3. Step 3: Cross multiply
    166,685.29x = 230,023.95 × 90,202.71
  4. Step 4: Simplify right side
    166,685.29x = 20,748,784,686.62
  5. Step 5: Solve for x
    x = 20,748,784,686.62/166,685.29
  6. Step 6: Final answer
    x = 124,478.80

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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.