Home / 113,087.20-169,630.80-75,665.20

Finding the Fourth Proportional to 113,087.20, 169,630.80 and 75,665.20

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Solution

The fourth proportional to 113,087.20, 169,630.80 and 75,665.20 is: 113,497.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,087.20 : 169,630.80 = 75,665.20 : x
  2. Step 2: Convert to fraction form
    113,087.20/169,630.80 = 75,665.20/x
  3. Step 3: Cross multiply
    113,087.20x = 169,630.80 × 75,665.20
  4. Step 4: Simplify right side
    113,087.20x = 12,835,148,408.16
  5. Step 5: Solve for x
    x = 12,835,148,408.16/113,087.20
  6. Step 6: Final answer
    x = 113,497.80

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1.5x scale

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.