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Finding the Fourth Proportional to 101,432.40, 152,148.60 and 45,272.40

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Solution

The fourth proportional to 101,432.40, 152,148.60 and 45,272.40 is: 67,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,432.40 : 152,148.60 = 45,272.40 : x
  2. Step 2: Convert to fraction form
    101,432.40/152,148.60 = 45,272.40/x
  3. Step 3: Cross multiply
    101,432.40x = 152,148.60 × 45,272.40
  4. Step 4: Simplify right side
    101,432.40x = 6,888,132,278.64
  5. Step 5: Solve for x
    x = 6,888,132,278.64/101,432.40
  6. Step 6: Final answer
    x = 67,908.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.