Home / 121,338.41-182,033.53-42,455.21

Finding the Fourth Proportional to 121,338.41, 182,033.53 and 42,455.21

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Solution

The fourth proportional to 121,338.41, 182,033.53 and 42,455.21 is: 63,691.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,338.41 : 182,033.53 = 42,455.21 : x
  2. Step 2: Convert to fraction form
    121,338.41/182,033.53 = 42,455.21/x
  3. Step 3: Cross multiply
    121,338.41x = 182,033.53 × 42,455.21
  4. Step 4: Simplify right side
    121,338.41x = 7,728,270,726.89
  5. Step 5: Solve for x
    x = 7,728,270,726.89/121,338.41
  6. Step 6: Final answer
    x = 63,691.88

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1.5x scale

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.