Home / 115,143.16-172,395.84-58,862.12

Finding the Fourth Proportional to 115,143.16, 172,395.84 and 58,862.12

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Solution

The fourth proportional to 115,143.16, 172,395.84 and 58,862.12 is: 88,130.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,143.16 : 172,395.84 = 58,862.12 : x
  2. Step 2: Convert to fraction form
    115,143.16/172,395.84 = 58,862.12/x
  3. Step 3: Cross multiply
    115,143.16x = 172,395.84 × 58,862.12
  4. Step 4: Simplify right side
    115,143.16x = 10,147,584,621.58
  5. Step 5: Solve for x
    x = 10,147,584,621.58/115,143.16
  6. Step 6: Final answer
    x = 88,130.16

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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.