Home / 130,920.60-196,380.90-47,803.80

Finding the Fourth Proportional to 130,920.60, 196,380.90 and 47,803.80

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Solution

The fourth proportional to 130,920.60, 196,380.90 and 47,803.80 is: 71,705.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,920.60 : 196,380.90 = 47,803.80 : x
  2. Step 2: Convert to fraction form
    130,920.60/196,380.90 = 47,803.80/x
  3. Step 3: Cross multiply
    130,920.60x = 196,380.90 × 47,803.80
  4. Step 4: Simplify right side
    130,920.60x = 9,387,753,267.42
  5. Step 5: Solve for x
    x = 9,387,753,267.42/130,920.60
  6. Step 6: Final answer
    x = 71,705.70

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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.