Home / 121,713.76-182,580.27-42,845.68

Finding the Fourth Proportional to 121,713.76, 182,580.27 and 42,845.68

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Solution

The fourth proportional to 121,713.76, 182,580.27 and 42,845.68 is: 64,271.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,713.76 : 182,580.27 = 42,845.68 : x
  2. Step 2: Convert to fraction form
    121,713.76/182,580.27 = 42,845.68/x
  3. Step 3: Cross multiply
    121,713.76x = 182,580.27 × 42,845.68
  4. Step 4: Simplify right side
    121,713.76x = 7,822,775,822.73
  5. Step 5: Solve for x
    x = 7,822,775,822.73/121,713.76
  6. Step 6: Final answer
    x = 64,271.91

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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.