Home / 113,203.20-169,401.60-98,572.80

Finding the Fourth Proportional to 113,203.20, 169,401.60 and 98,572.80

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Solution

The fourth proportional to 113,203.20, 169,401.60 and 98,572.80 is: 147,508.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,203.20 : 169,401.60 = 98,572.80 : x
  2. Step 2: Convert to fraction form
    113,203.20/169,401.60 = 98,572.80/x
  3. Step 3: Cross multiply
    113,203.20x = 169,401.60 × 98,572.80
  4. Step 4: Simplify right side
    113,203.20x = 16,698,390,036.48
  5. Step 5: Solve for x
    x = 16,698,390,036.48/113,203.20
  6. Step 6: Final answer
    x = 147,508.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.