Home / 156,055.32-215,354.79-84,433.80

Finding the Fourth Proportional to 156,055.32, 215,354.79 and 84,433.80

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Solution

The fourth proportional to 156,055.32, 215,354.79 and 84,433.80 is: 116,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,055.32 : 215,354.79 = 84,433.80 : x
  2. Step 2: Convert to fraction form
    156,055.32/215,354.79 = 84,433.80/x
  3. Step 3: Cross multiply
    156,055.32x = 215,354.79 × 84,433.80
  4. Step 4: Simplify right side
    156,055.32x = 18,183,223,267.90
  5. Step 5: Solve for x
    x = 18,183,223,267.90/156,055.32
  6. Step 6: Final answer
    x = 116,517.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.