Home / 131,828.26-181,921.95-71,397.52

Finding the Fourth Proportional to 131,828.26, 181,921.95 and 71,397.52

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Solution

The fourth proportional to 131,828.26, 181,921.95 and 71,397.52 is: 98,528.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,828.26 : 181,921.95 = 71,397.52 : x
  2. Step 2: Convert to fraction form
    131,828.26/181,921.95 = 71,397.52/x
  3. Step 3: Cross multiply
    131,828.26x = 181,921.95 × 71,397.52
  4. Step 4: Simplify right side
    131,828.26x = 12,988,776,063.56
  5. Step 5: Solve for x
    x = 12,988,776,063.56/131,828.26
  6. Step 6: Final answer
    x = 98,528.01

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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.