Home / 113,822.80-170,734.20-78,393.40

Finding the Fourth Proportional to 113,822.80, 170,734.20 and 78,393.40

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Solution

The fourth proportional to 113,822.80, 170,734.20 and 78,393.40 is: 117,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,822.80 : 170,734.20 = 78,393.40 : x
  2. Step 2: Convert to fraction form
    113,822.80/170,734.20 = 78,393.40/x
  3. Step 3: Cross multiply
    113,822.80x = 170,734.20 × 78,393.40
  4. Step 4: Simplify right side
    113,822.80x = 13,384,434,434.28
  5. Step 5: Solve for x
    x = 13,384,434,434.28/113,822.80
  6. Step 6: Final answer
    x = 117,590.10

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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.