Home / 121,453.78-182,206.60-42,572.74

Finding the Fourth Proportional to 121,453.78, 182,206.60 and 42,572.74

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Solution

The fourth proportional to 121,453.78, 182,206.60 and 42,572.74 is: 63,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,453.78 : 182,206.60 = 42,572.74 : x
  2. Step 2: Convert to fraction form
    121,453.78/182,206.60 = 42,572.74/x
  3. Step 3: Cross multiply
    121,453.78x = 182,206.60 × 42,572.74
  4. Step 4: Simplify right side
    121,453.78x = 7,757,034,208.08
  5. Step 5: Solve for x
    x = 7,757,034,208.08/121,453.78
  6. Step 6: Final answer
    x = 63,868.20

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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.