Home / 136,824.08-188,815.25-76,395.66

Finding the Fourth Proportional to 136,824.08, 188,815.25 and 76,395.66

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Solution

The fourth proportional to 136,824.08, 188,815.25 and 76,395.66 is: 105,424.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,824.08 : 188,815.25 = 76,395.66 : x
  2. Step 2: Convert to fraction form
    136,824.08/188,815.25 = 76,395.66/x
  3. Step 3: Cross multiply
    136,824.08x = 188,815.25 × 76,395.66
  4. Step 4: Simplify right side
    136,824.08x = 14,424,665,259.84
  5. Step 5: Solve for x
    x = 14,424,665,259.84/136,824.08
  6. Step 6: Final answer
    x = 105,424.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.