Home / 120,871.60-181,280.07-45,965.05

Finding the Fourth Proportional to 120,871.60, 181,280.07 and 45,965.05

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Solution

The fourth proportional to 120,871.60, 181,280.07 and 45,965.05 is: 68,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,871.60 : 181,280.07 = 45,965.05 : x
  2. Step 2: Convert to fraction form
    120,871.60/181,280.07 = 45,965.05/x
  3. Step 3: Cross multiply
    120,871.60x = 181,280.07 × 45,965.05
  4. Step 4: Simplify right side
    120,871.60x = 8,332,547,481.55
  5. Step 5: Solve for x
    x = 8,332,547,481.55/120,871.60
  6. Step 6: Final answer
    x = 68,937.18

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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.