Home / 136,711.40-204,696.54-70,909.16

Finding the Fourth Proportional to 136,711.40, 204,696.54 and 70,909.16

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Solution

The fourth proportional to 136,711.40, 204,696.54 and 70,909.16 is: 106,171.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,711.40 : 204,696.54 = 70,909.16 : x
  2. Step 2: Convert to fraction form
    136,711.40/204,696.54 = 70,909.16/x
  3. Step 3: Cross multiply
    136,711.40x = 204,696.54 × 70,909.16
  4. Step 4: Simplify right side
    136,711.40x = 14,514,859,706.31
  5. Step 5: Solve for x
    x = 14,514,859,706.31/136,711.40
  6. Step 6: Final answer
    x = 106,171.54

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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.