Home / 156,945.85-216,586.64-85,325.92

Finding the Fourth Proportional to 156,945.85, 216,586.64 and 85,325.92

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Solution

The fourth proportional to 156,945.85, 216,586.64 and 85,325.92 is: 117,750.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,945.85 : 216,586.64 = 85,325.92 : x
  2. Step 2: Convert to fraction form
    156,945.85/216,586.64 = 85,325.92/x
  3. Step 3: Cross multiply
    156,945.85x = 216,586.64 × 85,325.92
  4. Step 4: Simplify right side
    156,945.85x = 18,480,454,317.71
  5. Step 5: Solve for x
    x = 18,480,454,317.71/156,945.85
  6. Step 6: Final answer
    x = 117,750.51

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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.