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Finding the Fourth Proportional to 107,715, 148,658.22 and 63,040.44

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Solution

The fourth proportional to 107,715, 148,658.22 and 63,040.44 is: 87,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,715 : 148,658.22 = 63,040.44 : x
  2. Step 2: Convert to fraction form
    107,715/148,658.22 = 63,040.44/x
  3. Step 3: Cross multiply
    107,715x = 148,658.22 × 63,040.44
  4. Step 4: Simplify right side
    107,715x = 9,371,479,598.42
  5. Step 5: Solve for x
    x = 9,371,479,598.42/107,715
  6. Step 6: Final answer
    x = 87,002.55

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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.