Home / 121,678.74-182,528.82-42,793.56

Finding the Fourth Proportional to 121,678.74, 182,528.82 and 42,793.56

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Solution

The fourth proportional to 121,678.74, 182,528.82 and 42,793.56 is: 64,194.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,678.74 : 182,528.82 = 42,793.56 : x
  2. Step 2: Convert to fraction form
    121,678.74/182,528.82 = 42,793.56/x
  3. Step 3: Cross multiply
    121,678.74x = 182,528.82 × 42,793.56
  4. Step 4: Simplify right side
    121,678.74x = 7,811,058,010.40
  5. Step 5: Solve for x
    x = 7,811,058,010.40/121,678.74
  6. Step 6: Final answer
    x = 64,194.11

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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.