Home / 131,764.95-181,835.70-71,335.61

Finding the Fourth Proportional to 131,764.95, 181,835.70 and 71,335.61

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Solution

The fourth proportional to 131,764.95, 181,835.70 and 71,335.61 is: 98,443.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,764.95 : 181,835.70 = 71,335.61 : x
  2. Step 2: Convert to fraction form
    131,764.95/181,835.70 = 71,335.61/x
  3. Step 3: Cross multiply
    131,764.95x = 181,835.70 × 71,335.61
  4. Step 4: Simplify right side
    131,764.95x = 12,971,359,670.10
  5. Step 5: Solve for x
    x = 12,971,359,670.10/131,764.95
  6. Step 6: Final answer
    x = 98,443.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.