Home / 131,403.80-197,154.30-42,660.20

Finding the Fourth Proportional to 131,403.80, 197,154.30 and 42,660.20

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Solution

The fourth proportional to 131,403.80, 197,154.30 and 42,660.20 is: 64,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,403.80 : 197,154.30 = 42,660.20 : x
  2. Step 2: Convert to fraction form
    131,403.80/197,154.30 = 42,660.20/x
  3. Step 3: Cross multiply
    131,403.80x = 197,154.30 × 42,660.20
  4. Step 4: Simplify right side
    131,403.80x = 8,410,641,868.86
  5. Step 5: Solve for x
    x = 8,410,641,868.86/131,403.80
  6. Step 6: Final answer
    x = 64,006.08

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1.5x scale

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.