Home / 121,360.28-182,121.39-42,474.51

Finding the Fourth Proportional to 121,360.28, 182,121.39 and 42,474.51

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Solution

The fourth proportional to 121,360.28, 182,121.39 and 42,474.51 is: 63,740.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,360.28 : 182,121.39 = 42,474.51 : x
  2. Step 2: Convert to fraction form
    121,360.28/182,121.39 = 42,474.51/x
  3. Step 3: Cross multiply
    121,360.28x = 182,121.39 × 42,474.51
  4. Step 4: Simplify right side
    121,360.28x = 7,735,516,800.77
  5. Step 5: Solve for x
    x = 7,735,516,800.77/121,360.28
  6. Step 6: Final answer
    x = 63,740.11

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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.