Home / 131,572.41-181,570.05-71,143.04

Finding the Fourth Proportional to 131,572.41, 181,570.05 and 71,143.04

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Solution

The fourth proportional to 131,572.41, 181,570.05 and 71,143.04 is: 98,177.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,572.41 : 181,570.05 = 71,143.04 : x
  2. Step 2: Convert to fraction form
    131,572.41/181,570.05 = 71,143.04/x
  3. Step 3: Cross multiply
    131,572.41x = 181,570.05 × 71,143.04
  4. Step 4: Simplify right side
    131,572.41x = 12,917,445,329.95
  5. Step 5: Solve for x
    x = 12,917,445,329.95/131,572.41
  6. Step 6: Final answer
    x = 98,177.46

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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.