Home / 131,765.95-181,837.08-71,336.61

Finding the Fourth Proportional to 131,765.95, 181,837.08 and 71,336.61

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Solution

The fourth proportional to 131,765.95, 181,837.08 and 71,336.61 is: 98,444.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,765.95 : 181,837.08 = 71,336.61 : x
  2. Step 2: Convert to fraction form
    131,765.95/181,837.08 = 71,336.61/x
  3. Step 3: Cross multiply
    131,765.95x = 181,837.08 × 71,336.61
  4. Step 4: Simplify right side
    131,765.95x = 12,971,640,859.50
  5. Step 5: Solve for x
    x = 12,971,640,859.50/131,765.95
  6. Step 6: Final answer
    x = 98,444.56

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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.