Home / 131,519.60-181,493.40-74,158.40

Finding the Fourth Proportional to 131,519.60, 181,493.40 and 74,158.40

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Solution

The fourth proportional to 131,519.60, 181,493.40 and 74,158.40 is: 102,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,519.60 : 181,493.40 = 74,158.40 : x
  2. Step 2: Convert to fraction form
    131,519.60/181,493.40 = 74,158.40/x
  3. Step 3: Cross multiply
    131,519.60x = 181,493.40 × 74,158.40
  4. Step 4: Simplify right side
    131,519.60x = 13,459,260,154.56
  5. Step 5: Solve for x
    x = 13,459,260,154.56/131,519.60
  6. Step 6: Final answer
    x = 102,336.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.