Home / 148,625.04-205,101.18-80,641.56

Finding the Fourth Proportional to 148,625.04, 205,101.18 and 80,641.56

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Solution

The fourth proportional to 148,625.04, 205,101.18 and 80,641.56 is: 111,284.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,625.04 : 205,101.18 = 80,641.56 : x
  2. Step 2: Convert to fraction form
    148,625.04/205,101.18 = 80,641.56/x
  3. Step 3: Cross multiply
    148,625.04x = 205,101.18 × 80,641.56
  4. Step 4: Simplify right side
    148,625.04x = 16,539,679,113.04
  5. Step 5: Solve for x
    x = 16,539,679,113.04/148,625.04
  6. Step 6: Final answer
    x = 111,284.61

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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.