Home / 121,404.10-182,106.15-74,683.30

Finding the Fourth Proportional to 121,404.10, 182,106.15 and 74,683.30

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Solution

The fourth proportional to 121,404.10, 182,106.15 and 74,683.30 is: 112,024.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,404.10 : 182,106.15 = 74,683.30 : x
  2. Step 2: Convert to fraction form
    121,404.10/182,106.15 = 74,683.30/x
  3. Step 3: Cross multiply
    121,404.10x = 182,106.15 × 74,683.30
  4. Step 4: Simplify right side
    121,404.10x = 13,600,288,232.30
  5. Step 5: Solve for x
    x = 13,600,288,232.30/121,404.10
  6. Step 6: Final answer
    x = 112,024.95

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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.