Home / 148,920.61-205,510.44-80,937.74

Finding the Fourth Proportional to 148,920.61, 205,510.44 and 80,937.74

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Solution

The fourth proportional to 148,920.61, 205,510.44 and 80,937.74 is: 111,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,920.61 : 205,510.44 = 80,937.74 : x
  2. Step 2: Convert to fraction form
    148,920.61/205,510.44 = 80,937.74/x
  3. Step 3: Cross multiply
    148,920.61x = 205,510.44 × 80,937.74
  4. Step 4: Simplify right side
    148,920.61x = 16,633,550,560.01
  5. Step 5: Solve for x
    x = 16,633,550,560.01/148,920.61
  6. Step 6: Final answer
    x = 111,694.08

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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.