Home / 148,700.32-205,200.87-80,715.83

Finding the Fourth Proportional to 148,700.32, 205,200.87 and 80,715.83

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Solution

The fourth proportional to 148,700.32, 205,200.87 and 80,715.83 is: 111,384.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,700.32 : 205,200.87 = 80,715.83 : x
  2. Step 2: Convert to fraction form
    148,700.32/205,200.87 = 80,715.83/x
  3. Step 3: Cross multiply
    148,700.32x = 205,200.87 × 80,715.83
  4. Step 4: Simplify right side
    148,700.32x = 16,562,957,512.77
  5. Step 5: Solve for x
    x = 16,562,957,512.77/148,700.32
  6. Step 6: Final answer
    x = 111,384.82

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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.