Home / 176,721.18-243,891.47-100,265.18

Finding the Fourth Proportional to 176,721.18, 243,891.47 and 100,265.18

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Solution

The fourth proportional to 176,721.18, 243,891.47 and 100,265.18 is: 138,375.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,721.18 : 243,891.47 = 100,265.18 : x
  2. Step 2: Convert to fraction form
    176,721.18/243,891.47 = 100,265.18/x
  3. Step 3: Cross multiply
    176,721.18x = 243,891.47 × 100,265.18
  4. Step 4: Simplify right side
    176,721.18x = 24,453,821,171.22
  5. Step 5: Solve for x
    x = 24,453,821,171.22/176,721.18
  6. Step 6: Final answer
    x = 138,375.16

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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.