Home / 121,140.46-181,735.02-42,233.50

Finding the Fourth Proportional to 121,140.46, 181,735.02 and 42,233.50

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Solution

The fourth proportional to 121,140.46, 181,735.02 and 42,233.50 is: 63,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,140.46 : 181,735.02 = 42,233.50 : x
  2. Step 2: Convert to fraction form
    121,140.46/181,735.02 = 42,233.50/x
  3. Step 3: Cross multiply
    121,140.46x = 181,735.02 × 42,233.50
  4. Step 4: Simplify right side
    121,140.46x = 7,675,305,967.17
  5. Step 5: Solve for x
    x = 7,675,305,967.17/121,140.46
  6. Step 6: Final answer
    x = 63,358.73

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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.