Home / 113,744.10-170,616.15-78,314.70

Finding the Fourth Proportional to 113,744.10, 170,616.15 and 78,314.70

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Solution

The fourth proportional to 113,744.10, 170,616.15 and 78,314.70 is: 117,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,744.10 : 170,616.15 = 78,314.70 : x
  2. Step 2: Convert to fraction form
    113,744.10/170,616.15 = 78,314.70/x
  3. Step 3: Cross multiply
    113,744.10x = 170,616.15 × 78,314.70
  4. Step 4: Simplify right side
    113,744.10x = 13,361,752,602.41
  5. Step 5: Solve for x
    x = 13,361,752,602.41/113,744.10
  6. Step 6: Final answer
    x = 117,472.05

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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.