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Finding the Fourth Proportional to 100,089.85, 150,134.87 and 40,925.52

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Solution

The fourth proportional to 100,089.85, 150,134.87 and 40,925.52 is: 61,388.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,089.85 : 150,134.87 = 40,925.52 : x
  2. Step 2: Convert to fraction form
    100,089.85/150,134.87 = 40,925.52/x
  3. Step 3: Cross multiply
    100,089.85x = 150,134.87 × 40,925.52
  4. Step 4: Simplify right side
    100,089.85x = 6,144,347,624.88
  5. Step 5: Solve for x
    x = 6,144,347,624.88/100,089.85
  6. Step 6: Final answer
    x = 61,388.32

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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.