Home / 115,621.80-173,432.70-36,742.20

Finding the Fourth Proportional to 115,621.80, 173,432.70 and 36,742.20

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Solution

The fourth proportional to 115,621.80, 173,432.70 and 36,742.20 is: 55,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,621.80 : 173,432.70 = 36,742.20 : x
  2. Step 2: Convert to fraction form
    115,621.80/173,432.70 = 36,742.20/x
  3. Step 3: Cross multiply
    115,621.80x = 173,432.70 × 36,742.20
  4. Step 4: Simplify right side
    115,621.80x = 6,372,298,949.94
  5. Step 5: Solve for x
    x = 6,372,298,949.94/115,621.80
  6. Step 6: Final answer
    x = 55,113.30

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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.