Home / 131,820.50-197,689.86-47,569.70

Finding the Fourth Proportional to 131,820.50, 197,689.86 and 47,569.70

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Solution

The fourth proportional to 131,820.50, 197,689.86 and 47,569.70 is: 71,339.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,820.50 : 197,689.86 = 47,569.70 : x
  2. Step 2: Convert to fraction form
    131,820.50/197,689.86 = 47,569.70/x
  3. Step 3: Cross multiply
    131,820.50x = 197,689.86 × 47,569.70
  4. Step 4: Simplify right side
    131,820.50x = 9,404,047,333.24
  5. Step 5: Solve for x
    x = 9,404,047,333.24/131,820.50
  6. Step 6: Final answer
    x = 71,339.79

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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.