Home / 151,546.32-209,179.80-87,899.76

Finding the Fourth Proportional to 151,546.32, 209,179.80 and 87,899.76

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Solution

The fourth proportional to 151,546.32, 209,179.80 and 87,899.76 is: 121,328.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,546.32 : 209,179.80 = 87,899.76 : x
  2. Step 2: Convert to fraction form
    151,546.32/209,179.80 = 87,899.76/x
  3. Step 3: Cross multiply
    151,546.32x = 209,179.80 × 87,899.76
  4. Step 4: Simplify right side
    151,546.32x = 18,386,854,216.85
  5. Step 5: Solve for x
    x = 18,386,854,216.85/151,546.32
  6. Step 6: Final answer
    x = 121,328.28

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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.