Home / 107,401.92-147,899.61-98,420.64

Finding the Fourth Proportional to 107,401.92, 147,899.61 and 98,420.64

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Solution

The fourth proportional to 107,401.92, 147,899.61 and 98,420.64 is: 135,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,401.92 : 147,899.61 = 98,420.64 : x
  2. Step 2: Convert to fraction form
    107,401.92/147,899.61 = 98,420.64/x
  3. Step 3: Cross multiply
    107,401.92x = 147,899.61 × 98,420.64
  4. Step 4: Simplify right side
    107,401.92x = 14,556,374,271.95
  5. Step 5: Solve for x
    x = 14,556,374,271.95/107,401.92
  6. Step 6: Final answer
    x = 135,531.79

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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.