Home / 156,945.40-216,584.18-85,324.92

Finding the Fourth Proportional to 156,945.40, 216,584.18 and 85,324.92

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Solution

The fourth proportional to 156,945.40, 216,584.18 and 85,324.92 is: 117,748.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,945.40 : 216,584.18 = 85,324.92 : x
  2. Step 2: Convert to fraction form
    156,945.40/216,584.18 = 85,324.92/x
  3. Step 3: Cross multiply
    156,945.40x = 216,584.18 × 85,324.92
  4. Step 4: Simplify right side
    156,945.40x = 18,480,027,831.77
  5. Step 5: Solve for x
    x = 18,480,027,831.77/156,945.40
  6. Step 6: Final answer
    x = 117,748.13

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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.