Home / 98,266.27-135,565.43-64,215.66

Finding the Fourth Proportional to 98,266.27, 135,565.43 and 64,215.66

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Solution

The fourth proportional to 98,266.27, 135,565.43 and 64,215.66 is: 88,590.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,266.27 : 135,565.43 = 64,215.66 : x
  2. Step 2: Convert to fraction form
    98,266.27/135,565.43 = 64,215.66/x
  3. Step 3: Cross multiply
    98,266.27x = 135,565.43 × 64,215.66
  4. Step 4: Simplify right side
    98,266.27x = 8,705,422,882.81
  5. Step 5: Solve for x
    x = 8,705,422,882.81/98,266.27
  6. Step 6: Final answer
    x = 88,590.14

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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.