Home / 150,854.41-208,155.96-87,179.92

Finding the Fourth Proportional to 150,854.41, 208,155.96 and 87,179.92

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Solution

The fourth proportional to 150,854.41, 208,155.96 and 87,179.92 is: 120,294.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,854.41 : 208,155.96 = 87,179.92 : x
  2. Step 2: Convert to fraction form
    150,854.41/208,155.96 = 87,179.92/x
  3. Step 3: Cross multiply
    150,854.41x = 208,155.96 × 87,179.92
  4. Step 4: Simplify right side
    150,854.41x = 18,147,019,746.86
  5. Step 5: Solve for x
    x = 18,147,019,746.86/150,854.41
  6. Step 6: Final answer
    x = 120,294.93

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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.