Home / 125,230.19-172,843.74-115,142.58

Finding the Fourth Proportional to 125,230.19, 172,843.74 and 115,142.58

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Solution

The fourth proportional to 125,230.19, 172,843.74 and 115,142.58 is: 158,920.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,230.19 : 172,843.74 = 115,142.58 : x
  2. Step 2: Convert to fraction form
    125,230.19/172,843.74 = 115,142.58/x
  3. Step 3: Cross multiply
    125,230.19x = 172,843.74 × 115,142.58
  4. Step 4: Simplify right side
    125,230.19x = 19,901,674,160.45
  5. Step 5: Solve for x
    x = 19,901,674,160.45/125,230.19
  6. Step 6: Final answer
    x = 158,920.74

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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.