Home / 118,770.20-163,902.40-65,058.56

Finding the Fourth Proportional to 118,770.20, 163,902.40 and 65,058.56

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Solution

The fourth proportional to 118,770.20, 163,902.40 and 65,058.56 is: 89,780.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,770.20 : 163,902.40 = 65,058.56 : x
  2. Step 2: Convert to fraction form
    118,770.20/163,902.40 = 65,058.56/x
  3. Step 3: Cross multiply
    118,770.20x = 163,902.40 × 65,058.56
  4. Step 4: Simplify right side
    118,770.20x = 10,663,254,124.54
  5. Step 5: Solve for x
    x = 10,663,254,124.54/118,770.20
  6. Step 6: Final answer
    x = 89,780.55

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1.5x scale

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.