Home / 121,014.10-181,521.15-74,293.30

Finding the Fourth Proportional to 121,014.10, 181,521.15 and 74,293.30

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Solution

The fourth proportional to 121,014.10, 181,521.15 and 74,293.30 is: 111,439.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,014.10 : 181,521.15 = 74,293.30 : x
  2. Step 2: Convert to fraction form
    121,014.10/181,521.15 = 74,293.30/x
  3. Step 3: Cross multiply
    121,014.10x = 181,521.15 × 74,293.30
  4. Step 4: Simplify right side
    121,014.10x = 13,485,805,253.30
  5. Step 5: Solve for x
    x = 13,485,805,253.30/121,014.10
  6. Step 6: Final answer
    x = 111,439.95

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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.