Home / 151,568.30-209,164.16-87,041.76

Finding the Fourth Proportional to 151,568.30, 209,164.16 and 87,041.76

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Solution

The fourth proportional to 151,568.30, 209,164.16 and 87,041.76 is: 120,117.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,568.30 : 209,164.16 = 87,041.76 : x
  2. Step 2: Convert to fraction form
    151,568.30/209,164.16 = 87,041.76/x
  3. Step 3: Cross multiply
    151,568.30x = 209,164.16 × 87,041.76
  4. Step 4: Simplify right side
    151,568.30x = 18,206,016,615.32
  5. Step 5: Solve for x
    x = 18,206,016,615.32/151,568.30
  6. Step 6: Final answer
    x = 120,117.57

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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.