Home / 131,862.53-181,971.18-71,433.18

Finding the Fourth Proportional to 131,862.53, 181,971.18 and 71,433.18

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Solution

The fourth proportional to 131,862.53, 181,971.18 and 71,433.18 is: 98,578.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,862.53 : 181,971.18 = 71,433.18 : x
  2. Step 2: Convert to fraction form
    131,862.53/181,971.18 = 71,433.18/x
  3. Step 3: Cross multiply
    131,862.53x = 181,971.18 × 71,433.18
  4. Step 4: Simplify right side
    131,862.53x = 12,998,780,055.75
  5. Step 5: Solve for x
    x = 12,998,780,055.75/131,862.53
  6. Step 6: Final answer
    x = 98,578.27

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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.