Home / 131,820.16-197,689.29-47,569.39

Finding the Fourth Proportional to 131,820.16, 197,689.29 and 47,569.39

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Solution

The fourth proportional to 131,820.16, 197,689.29 and 47,569.39 is: 71,339.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,820.16 : 197,689.29 = 47,569.39 : x
  2. Step 2: Convert to fraction form
    131,820.16/197,689.29 = 47,569.39/x
  3. Step 3: Cross multiply
    131,820.16x = 197,689.29 × 47,569.39
  4. Step 4: Simplify right side
    131,820.16x = 9,403,958,934.83
  5. Step 5: Solve for x
    x = 9,403,958,934.83/131,820.16
  6. Step 6: Final answer
    x = 71,339.31

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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.