Home / 131,536.17-181,478.52-80,495.68

Finding the Fourth Proportional to 131,536.17, 181,478.52 and 80,495.68

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Solution

The fourth proportional to 131,536.17, 181,478.52 and 80,495.68 is: 111,058.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,536.17 : 181,478.52 = 80,495.68 : x
  2. Step 2: Convert to fraction form
    131,536.17/181,478.52 = 80,495.68/x
  3. Step 3: Cross multiply
    131,536.17x = 181,478.52 × 80,495.68
  4. Step 4: Simplify right side
    131,536.17x = 14,608,236,872.79
  5. Step 5: Solve for x
    x = 14,608,236,872.79/131,536.17
  6. Step 6: Final answer
    x = 111,058.71

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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.