Home / 125,250.74-172,872.12-115,163.24

Finding the Fourth Proportional to 125,250.74, 172,872.12 and 115,163.24

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Solution

The fourth proportional to 125,250.74, 172,872.12 and 115,163.24 is: 158,949.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,250.74 : 172,872.12 = 115,163.24 : x
  2. Step 2: Convert to fraction form
    125,250.74/172,872.12 = 115,163.24/x
  3. Step 3: Cross multiply
    125,250.74x = 172,872.12 × 115,163.24
  4. Step 4: Simplify right side
    125,250.74x = 19,908,513,444.87
  5. Step 5: Solve for x
    x = 19,908,513,444.87/125,250.74
  6. Step 6: Final answer
    x = 158,949.27

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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.