Home / 156,920.24-216,548.55-85,300.04

Finding the Fourth Proportional to 156,920.24, 216,548.55 and 85,300.04

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Solution

The fourth proportional to 156,920.24, 216,548.55 and 85,300.04 is: 117,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,920.24 : 216,548.55 = 85,300.04 : x
  2. Step 2: Convert to fraction form
    156,920.24/216,548.55 = 85,300.04/x
  3. Step 3: Cross multiply
    156,920.24x = 216,548.55 × 85,300.04
  4. Step 4: Simplify right side
    156,920.24x = 18,471,599,976.94
  5. Step 5: Solve for x
    x = 18,471,599,976.94/156,920.24
  6. Step 6: Final answer
    x = 117,713.30

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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.