Home / 95,718.80-143,578.20-91,126.10

Finding the Fourth Proportional to 95,718.80, 143,578.20 and 91,126.10

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Solution

The fourth proportional to 95,718.80, 143,578.20 and 91,126.10 is: 136,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,718.80 : 143,578.20 = 91,126.10 : x
  2. Step 2: Convert to fraction form
    95,718.80/143,578.20 = 91,126.10/x
  3. Step 3: Cross multiply
    95,718.80x = 143,578.20 × 91,126.10
  4. Step 4: Simplify right side
    95,718.80x = 13,083,721,411.02
  5. Step 5: Solve for x
    x = 13,083,721,411.02/95,718.80
  6. Step 6: Final answer
    x = 136,689.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.