Home / 121,520.10-182,280.15-114,132.90

Finding the Fourth Proportional to 121,520.10, 182,280.15 and 114,132.90

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Solution

The fourth proportional to 121,520.10, 182,280.15 and 114,132.90 is: 171,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,520.10 : 182,280.15 = 114,132.90 : x
  2. Step 2: Convert to fraction form
    121,520.10/182,280.15 = 114,132.90/x
  3. Step 3: Cross multiply
    121,520.10x = 182,280.15 × 114,132.90
  4. Step 4: Simplify right side
    121,520.10x = 20,804,162,131.94
  5. Step 5: Solve for x
    x = 20,804,162,131.94/121,520.10
  6. Step 6: Final answer
    x = 171,199.35

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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.