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Finding the Fourth Proportional to 100,658.16, 151,009.02 and 30,542.76

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Solution

The fourth proportional to 100,658.16, 151,009.02 and 30,542.76 is: 45,820.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,658.16 : 151,009.02 = 30,542.76 : x
  2. Step 2: Convert to fraction form
    100,658.16/151,009.02 = 30,542.76/x
  3. Step 3: Cross multiply
    100,658.16x = 151,009.02 × 30,542.76
  4. Step 4: Simplify right side
    100,658.16x = 4,612,232,255.70
  5. Step 5: Solve for x
    x = 4,612,232,255.70/100,658.16
  6. Step 6: Final answer
    x = 45,820.75

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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.