Home / 121,048.46-181,577.56-42,170.66

Finding the Fourth Proportional to 121,048.46, 181,577.56 and 42,170.66

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Solution

The fourth proportional to 121,048.46, 181,577.56 and 42,170.66 is: 63,257.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,048.46 : 181,577.56 = 42,170.66 : x
  2. Step 2: Convert to fraction form
    121,048.46/181,577.56 = 42,170.66/x
  3. Step 3: Cross multiply
    121,048.46x = 181,577.56 × 42,170.66
  4. Step 4: Simplify right side
    121,048.46x = 7,657,245,546.39
  5. Step 5: Solve for x
    x = 7,657,245,546.39/121,048.46
  6. Step 6: Final answer
    x = 63,257.69

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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.