Home / 113,834.40-170,816.40-78,799.20

Finding the Fourth Proportional to 113,834.40, 170,816.40 and 78,799.20

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Solution

The fourth proportional to 113,834.40, 170,816.40 and 78,799.20 is: 118,243.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,834.40 : 170,816.40 = 78,799.20 : x
  2. Step 2: Convert to fraction form
    113,834.40/170,816.40 = 78,799.20/x
  3. Step 3: Cross multiply
    113,834.40x = 170,816.40 × 78,799.20
  4. Step 4: Simplify right side
    113,834.40x = 13,460,195,666.88
  5. Step 5: Solve for x
    x = 13,460,195,666.88/113,834.40
  6. Step 6: Final answer
    x = 118,243.66

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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.