Home / 207,425.16-311,154.12-102,186.72

Finding the Fourth Proportional to 207,425.16, 311,154.12 and 102,186.72

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Solution

The fourth proportional to 207,425.16, 311,154.12 and 102,186.72 is: 153,288.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,425.16 : 311,154.12 = 102,186.72 : x
  2. Step 2: Convert to fraction form
    207,425.16/311,154.12 = 102,186.72/x
  3. Step 3: Cross multiply
    207,425.16x = 311,154.12 × 102,186.72
  4. Step 4: Simplify right side
    207,425.16x = 31,795,818,937.29
  5. Step 5: Solve for x
    x = 31,795,818,937.29/207,425.16
  6. Step 6: Final answer
    x = 153,288.15

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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.