Home / 120,880.60-181,148.10-89,042.20

Finding the Fourth Proportional to 120,880.60, 181,148.10 and 89,042.20

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Solution

The fourth proportional to 120,880.60, 181,148.10 and 89,042.20 is: 133,436.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,880.60 : 181,148.10 = 89,042.20 : x
  2. Step 2: Convert to fraction form
    120,880.60/181,148.10 = 89,042.20/x
  3. Step 3: Cross multiply
    120,880.60x = 181,148.10 × 89,042.20
  4. Step 4: Simplify right side
    120,880.60x = 16,129,825,349.82
  5. Step 5: Solve for x
    x = 16,129,825,349.82/120,880.60
  6. Step 6: Final answer
    x = 133,436.01

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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.