Home / 163,387.35-225,448.03-102,126.29

Finding the Fourth Proportional to 163,387.35, 225,448.03 and 102,126.29

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Solution

The fourth proportional to 163,387.35, 225,448.03 and 102,126.29 is: 140,917.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,387.35 : 225,448.03 = 102,126.29 : x
  2. Step 2: Convert to fraction form
    163,387.35/225,448.03 = 102,126.29/x
  3. Step 3: Cross multiply
    163,387.35x = 225,448.03 × 102,126.29
  4. Step 4: Simplify right side
    163,387.35x = 23,024,172,081.57
  5. Step 5: Solve for x
    x = 23,024,172,081.57/163,387.35
  6. Step 6: Final answer
    x = 140,917.71

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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.