Home / 113,200.20-169,909.65-68,913.45

Finding the Fourth Proportional to 113,200.20, 169,909.65 and 68,913.45

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Solution

The fourth proportional to 113,200.20, 169,909.65 and 68,913.45 is: 103,436.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,200.20 : 169,909.65 = 68,913.45 : x
  2. Step 2: Convert to fraction form
    113,200.20/169,909.65 = 68,913.45/x
  3. Step 3: Cross multiply
    113,200.20x = 169,909.65 × 68,913.45
  4. Step 4: Simplify right side
    113,200.20x = 11,709,060,169.79
  5. Step 5: Solve for x
    x = 11,709,060,169.79/113,200.20
  6. Step 6: Final answer
    x = 103,436.74

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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.