Home / 156,671.38-216,206.77-89,603.38

Finding the Fourth Proportional to 156,671.38, 216,206.77 and 89,603.38

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Solution

The fourth proportional to 156,671.38, 216,206.77 and 89,603.38 is: 123,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,671.38 : 216,206.77 = 89,603.38 : x
  2. Step 2: Convert to fraction form
    156,671.38/216,206.77 = 89,603.38/x
  3. Step 3: Cross multiply
    156,671.38x = 216,206.77 × 89,603.38
  4. Step 4: Simplify right side
    156,671.38x = 19,372,856,289.85
  5. Step 5: Solve for x
    x = 19,372,856,289.85/156,671.38
  6. Step 6: Final answer
    x = 123,652.81

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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.