Home / 89,820,086.20-134,730,129.30-80,750,159.80

Finding the Fourth Proportional to 89,820,086.20, 134,730,129.30 and 80,750,159.80

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Solution

The fourth proportional to 89,820,086.20, 134,730,129.30 and 80,750,159.80 is: 121,125,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,820,086.20 : 134,730,129.30 = 80,750,159.80 : x
  2. Step 2: Convert to fraction form
    89,820,086.20/134,730,129.30 = 80,750,159.80/x
  3. Step 3: Cross multiply
    89,820,086.20x = 134,730,129.30 × 80,750,159.80
  4. Step 4: Simplify right side
    89,820,086.20x = 10,879,479,470,849,662
  5. Step 5: Solve for x
    x = 10,879,479,470,849,662/89,820,086.20
  6. Step 6: Final answer
    x = 121,125,239.70

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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.