Home / 98,009.03-135,299.99-65,731.85

Finding the Fourth Proportional to 98,009.03, 135,299.99 and 65,731.85

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Solution

The fourth proportional to 98,009.03, 135,299.99 and 65,731.85 is: 90,741.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,009.03 : 135,299.99 = 65,731.85 : x
  2. Step 2: Convert to fraction form
    98,009.03/135,299.99 = 65,731.85/x
  3. Step 3: Cross multiply
    98,009.03x = 135,299.99 × 65,731.85
  4. Step 4: Simplify right side
    98,009.03x = 8,893,518,642.89
  5. Step 5: Solve for x
    x = 8,893,518,642.89/98,009.03
  6. Step 6: Final answer
    x = 90,741.83

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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.