Home / 131,407.20-181,333.44-74,818.08

Finding the Fourth Proportional to 131,407.20, 181,333.44 and 74,818.08

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Solution

The fourth proportional to 131,407.20, 181,333.44 and 74,818.08 is: 103,244.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,407.20 : 181,333.44 = 74,818.08 : x
  2. Step 2: Convert to fraction form
    131,407.20/181,333.44 = 74,818.08/x
  3. Step 3: Cross multiply
    131,407.20x = 181,333.44 × 74,818.08
  4. Step 4: Simplify right side
    131,407.20x = 13,567,019,820.60
  5. Step 5: Solve for x
    x = 13,567,019,820.60/131,407.20
  6. Step 6: Final answer
    x = 103,244.11

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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.