Home / 92,486.41-138,060.55-81,276.62

Finding the Fourth Proportional to 92,486.41, 138,060.55 and 81,276.62

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Solution

The fourth proportional to 92,486.41, 138,060.55 and 81,276.62 is: 121,326.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,486.41 : 138,060.55 = 81,276.62 : x
  2. Step 2: Convert to fraction form
    92,486.41/138,060.55 = 81,276.62/x
  3. Step 3: Cross multiply
    92,486.41x = 138,060.55 × 81,276.62
  4. Step 4: Simplify right side
    92,486.41x = 11,221,094,270.63
  5. Step 5: Solve for x
    x = 11,221,094,270.63/92,486.41
  6. Step 6: Final answer
    x = 121,326.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.