Home / 121,180.46-181,688.67-42,251.63

Finding the Fourth Proportional to 121,180.46, 181,688.67 and 42,251.63

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Solution

The fourth proportional to 121,180.46, 181,688.67 and 42,251.63 is: 63,348.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,180.46 : 181,688.67 = 42,251.63 : x
  2. Step 2: Convert to fraction form
    121,180.46/181,688.67 = 42,251.63/x
  3. Step 3: Cross multiply
    121,180.46x = 181,688.67 × 42,251.63
  4. Step 4: Simplify right side
    121,180.46x = 7,676,641,551.59
  5. Step 5: Solve for x
    x = 7,676,641,551.59/121,180.46
  6. Step 6: Final answer
    x = 63,348.84

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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.