Home / 131,766.81-181,836.93-71,335.90

Finding the Fourth Proportional to 131,766.81, 181,836.93 and 71,335.90

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Solution

The fourth proportional to 131,766.81, 181,836.93 and 71,335.90 is: 98,442.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,766.81 : 181,836.93 = 71,335.90 : x
  2. Step 2: Convert to fraction form
    131,766.81/181,836.93 = 71,335.90/x
  3. Step 3: Cross multiply
    131,766.81x = 181,836.93 × 71,335.90
  4. Step 4: Simplify right side
    131,766.81x = 12,971,501,054.79
  5. Step 5: Solve for x
    x = 12,971,501,054.79/131,766.81
  6. Step 6: Final answer
    x = 98,442.86

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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.