Home / 281,001.17-421,723.17-103,632.72

Finding the Fourth Proportional to 281,001.17, 421,723.17 and 103,632.72

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Solution

The fourth proportional to 281,001.17, 421,723.17 and 103,632.72 is: 155,530.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,001.17 : 421,723.17 = 103,632.72 : x
  2. Step 2: Convert to fraction form
    281,001.17/421,723.17 = 103,632.72/x
  3. Step 3: Cross multiply
    281,001.17x = 421,723.17 × 103,632.72
  4. Step 4: Simplify right side
    281,001.17x = 43,704,319,194.12
  5. Step 5: Solve for x
    x = 43,704,319,194.12/281,001.17
  6. Step 6: Final answer
    x = 155,530.74

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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.