Home / 131,519.60-181,493.36-74,158.40

Finding the Fourth Proportional to 131,519.60, 181,493.36 and 74,158.40

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Solution

The fourth proportional to 131,519.60, 181,493.36 and 74,158.40 is: 102,336.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,519.60 : 181,493.36 = 74,158.40 : x
  2. Step 2: Convert to fraction form
    131,519.60/181,493.36 = 74,158.40/x
  3. Step 3: Cross multiply
    131,519.60x = 181,493.36 × 74,158.40
  4. Step 4: Simplify right side
    131,519.60x = 13,459,257,188.22
  5. Step 5: Solve for x
    x = 13,459,257,188.22/131,519.60
  6. Step 6: Final answer
    x = 102,336.51

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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.