Home / 121,173.80-181,747.76-42,289.52

Finding the Fourth Proportional to 121,173.80, 181,747.76 and 42,289.52

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Solution

The fourth proportional to 121,173.80, 181,747.76 and 42,289.52 is: 63,429.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,173.80 : 181,747.76 = 42,289.52 : x
  2. Step 2: Convert to fraction form
    121,173.80/181,747.76 = 42,289.52/x
  3. Step 3: Cross multiply
    121,173.80x = 181,747.76 × 42,289.52
  4. Step 4: Simplify right side
    121,173.80x = 7,686,025,531.48
  5. Step 5: Solve for x
    x = 7,686,025,531.48/121,173.80
  6. Step 6: Final answer
    x = 63,429.76

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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.