Home / 107,651.16-148,631.76-67,381.20

Finding the Fourth Proportional to 107,651.16, 148,631.76 and 67,381.20

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Solution

The fourth proportional to 107,651.16, 148,631.76 and 67,381.20 is: 93,031.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,651.16 : 148,631.76 = 67,381.20 : x
  2. Step 2: Convert to fraction form
    107,651.16/148,631.76 = 67,381.20/x
  3. Step 3: Cross multiply
    107,651.16x = 148,631.76 × 67,381.20
  4. Step 4: Simplify right side
    107,651.16x = 10,014,986,346.91
  5. Step 5: Solve for x
    x = 10,014,986,346.91/107,651.16
  6. Step 6: Final answer
    x = 93,031.85

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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.