Home / 149,218.47-205,856.10-98,165.52

Finding the Fourth Proportional to 149,218.47, 205,856.10 and 98,165.52

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Solution

The fourth proportional to 149,218.47, 205,856.10 and 98,165.52 is: 135,425.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,218.47 : 205,856.10 = 98,165.52 : x
  2. Step 2: Convert to fraction form
    149,218.47/205,856.10 = 98,165.52/x
  3. Step 3: Cross multiply
    149,218.47x = 205,856.10 × 98,165.52
  4. Step 4: Simplify right side
    149,218.47x = 20,207,971,101.67
  5. Step 5: Solve for x
    x = 20,207,971,101.67/149,218.47
  6. Step 6: Final answer
    x = 135,425.40

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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.