Home / 156,680.85-216,222.08-85,060.81

Finding the Fourth Proportional to 156,680.85, 216,222.08 and 85,060.81

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Solution

The fourth proportional to 156,680.85, 216,222.08 and 85,060.81 is: 117,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,680.85 : 216,222.08 = 85,060.81 : x
  2. Step 2: Convert to fraction form
    156,680.85/216,222.08 = 85,060.81/x
  3. Step 3: Cross multiply
    156,680.85x = 216,222.08 × 85,060.81
  4. Step 4: Simplify right side
    156,680.85x = 18,392,025,264.68
  5. Step 5: Solve for x
    x = 18,392,025,264.68/156,680.85
  6. Step 6: Final answer
    x = 117,385.28

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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.