Home / 120,818.60-181,158.45-49,790.28

Finding the Fourth Proportional to 120,818.60, 181,158.45 and 49,790.28

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Solution

The fourth proportional to 120,818.60, 181,158.45 and 49,790.28 is: 74,656.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,818.60 : 181,158.45 = 49,790.28 : x
  2. Step 2: Convert to fraction form
    120,818.60/181,158.45 = 49,790.28/x
  3. Step 3: Cross multiply
    120,818.60x = 181,158.45 × 49,790.28
  4. Step 4: Simplify right side
    120,818.60x = 9,019,929,168.55
  5. Step 5: Solve for x
    x = 9,019,929,168.55/120,818.60
  6. Step 6: Final answer
    x = 74,656.79

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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.