Home / 123,934.60-185,772.30-67,688.20

Finding the Fourth Proportional to 123,934.60, 185,772.30 and 67,688.20

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Solution

The fourth proportional to 123,934.60, 185,772.30 and 67,688.20 is: 101,461.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,934.60 : 185,772.30 = 67,688.20 : x
  2. Step 2: Convert to fraction form
    123,934.60/185,772.30 = 67,688.20/x
  3. Step 3: Cross multiply
    123,934.60x = 185,772.30 × 67,688.20
  4. Step 4: Simplify right side
    123,934.60x = 12,574,592,596.86
  5. Step 5: Solve for x
    x = 12,574,592,596.86/123,934.60
  6. Step 6: Final answer
    x = 101,461.52

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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.