Home / 137,689.42-206,132.96-102,307.56

Finding the Fourth Proportional to 137,689.42, 206,132.96 and 102,307.56

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Solution

The fourth proportional to 137,689.42, 206,132.96 and 102,307.56 is: 153,163.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,689.42 : 206,132.96 = 102,307.56 : x
  2. Step 2: Convert to fraction form
    137,689.42/206,132.96 = 102,307.56/x
  3. Step 3: Cross multiply
    137,689.42x = 206,132.96 × 102,307.56
  4. Step 4: Simplify right side
    137,689.42x = 21,088,960,173.18
  5. Step 5: Solve for x
    x = 21,088,960,173.18/137,689.42
  6. Step 6: Final answer
    x = 153,163.26

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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.