Home / 156,650.80-216,177.37-85,030.20

Finding the Fourth Proportional to 156,650.80, 216,177.37 and 85,030.20

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Solution

The fourth proportional to 156,650.80, 216,177.37 and 85,030.20 is: 117,341.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,650.80 : 216,177.37 = 85,030.20 : x
  2. Step 2: Convert to fraction form
    156,650.80/216,177.37 = 85,030.20/x
  3. Step 3: Cross multiply
    156,650.80x = 216,177.37 × 85,030.20
  4. Step 4: Simplify right side
    156,650.80x = 18,381,605,006.57
  5. Step 5: Solve for x
    x = 18,381,605,006.57/156,650.80
  6. Step 6: Final answer
    x = 117,341.28

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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.