Home / 156,660.94-216,196.01-85,040.95

Finding the Fourth Proportional to 156,660.94, 216,196.01 and 85,040.95

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Solution

The fourth proportional to 156,660.94, 216,196.01 and 85,040.95 is: 117,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,660.94 : 216,196.01 = 85,040.95 : x
  2. Step 2: Convert to fraction form
    156,660.94/216,196.01 = 85,040.95/x
  3. Step 3: Cross multiply
    156,660.94x = 216,196.01 × 85,040.95
  4. Step 4: Simplify right side
    156,660.94x = 18,385,513,864.01
  5. Step 5: Solve for x
    x = 18,385,513,864.01/156,660.94
  6. Step 6: Final answer
    x = 117,358.64

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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.