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Finding the Fourth Proportional to 121,246.67, 181,870.37 and 42,360.90

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Solution

The fourth proportional to 121,246.67, 181,870.37 and 42,360.90 is: 63,541.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,246.67 : 181,870.37 = 42,360.90 : x
  2. Step 2: Convert to fraction form
    121,246.67/181,870.37 = 42,360.90/x
  3. Step 3: Cross multiply
    121,246.67x = 181,870.37 × 42,360.90
  4. Step 4: Simplify right side
    121,246.67x = 7,704,192,344.73
  5. Step 5: Solve for x
    x = 7,704,192,344.73/121,246.67
  6. Step 6: Final answer
    x = 63,541.48

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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.