Home / 120,834.80-181,252.20-89,730.80

Finding the Fourth Proportional to 120,834.80, 181,252.20 and 89,730.80

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Solution

The fourth proportional to 120,834.80, 181,252.20 and 89,730.80 is: 134,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,834.80 : 181,252.20 = 89,730.80 : x
  2. Step 2: Convert to fraction form
    120,834.80/181,252.20 = 89,730.80/x
  3. Step 3: Cross multiply
    120,834.80x = 181,252.20 × 89,730.80
  4. Step 4: Simplify right side
    120,834.80x = 16,263,904,907.76
  5. Step 5: Solve for x
    x = 16,263,904,907.76/120,834.80
  6. Step 6: Final answer
    x = 134,596.20

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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.