Home / 121,040.46-181,565.55-42,162.66

Finding the Fourth Proportional to 121,040.46, 181,565.55 and 42,162.66

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Solution

The fourth proportional to 121,040.46, 181,565.55 and 42,162.66 is: 63,245.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,040.46 : 181,565.55 = 42,162.66 : x
  2. Step 2: Convert to fraction form
    121,040.46/181,565.55 = 42,162.66/x
  3. Step 3: Cross multiply
    121,040.46x = 181,565.55 × 42,162.66
  4. Step 4: Simplify right side
    121,040.46x = 7,655,286,552.36
  5. Step 5: Solve for x
    x = 7,655,286,552.36/121,040.46
  6. Step 6: Final answer
    x = 63,245.68

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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.