Home / 148,772.76-205,309.98-81,706.20

Finding the Fourth Proportional to 148,772.76, 205,309.98 and 81,706.20

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Solution

The fourth proportional to 148,772.76, 205,309.98 and 81,706.20 is: 112,756.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,772.76 : 205,309.98 = 81,706.20 : x
  2. Step 2: Convert to fraction form
    148,772.76/205,309.98 = 81,706.20/x
  3. Step 3: Cross multiply
    148,772.76x = 205,309.98 × 81,706.20
  4. Step 4: Simplify right side
    148,772.76x = 16,775,098,287.88
  5. Step 5: Solve for x
    x = 16,775,098,287.88/148,772.76
  6. Step 6: Final answer
    x = 112,756.52

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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.