Home / 168,815.60-253,223.40-84,834.80

Finding the Fourth Proportional to 168,815.60, 253,223.40 and 84,834.80

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Solution

The fourth proportional to 168,815.60, 253,223.40 and 84,834.80 is: 127,252.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,815.60 : 253,223.40 = 84,834.80 : x
  2. Step 2: Convert to fraction form
    168,815.60/253,223.40 = 84,834.80/x
  3. Step 3: Cross multiply
    168,815.60x = 253,223.40 × 84,834.80
  4. Step 4: Simplify right side
    168,815.60x = 21,482,156,494.32
  5. Step 5: Solve for x
    x = 21,482,156,494.32/168,815.60
  6. Step 6: Final answer
    x = 127,252.20

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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.