Home / 159,081.61-219,534.09-87,462.13

Finding the Fourth Proportional to 159,081.61, 219,534.09 and 87,462.13

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Solution

The fourth proportional to 159,081.61, 219,534.09 and 87,462.13 is: 120,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,081.61 : 219,534.09 = 87,462.13 : x
  2. Step 2: Convert to fraction form
    159,081.61/219,534.09 = 87,462.13/x
  3. Step 3: Cross multiply
    159,081.61x = 219,534.09 × 87,462.13
  4. Step 4: Simplify right side
    159,081.61x = 19,200,919,119.01
  5. Step 5: Solve for x
    x = 19,200,919,119.01/159,081.61
  6. Step 6: Final answer
    x = 120,698.55

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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.