Home / 131,561.77-197,340.92-31,721.15

Finding the Fourth Proportional to 131,561.77, 197,340.92 and 31,721.15

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Solution

The fourth proportional to 131,561.77, 197,340.92 and 31,721.15 is: 47,581.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,561.77 : 197,340.92 = 31,721.15 : x
  2. Step 2: Convert to fraction form
    131,561.77/197,340.92 = 31,721.15/x
  3. Step 3: Cross multiply
    131,561.77x = 197,340.92 × 31,721.15
  4. Step 4: Simplify right side
    131,561.77x = 6,259,881,259.20
  5. Step 5: Solve for x
    x = 6,259,881,259.20/131,561.77
  6. Step 6: Final answer
    x = 47,581.31

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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.