Home / 136,285.38-188,072.34-75,855.06

Finding the Fourth Proportional to 136,285.38, 188,072.34 and 75,855.06

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Solution

The fourth proportional to 136,285.38, 188,072.34 and 75,855.06 is: 104,679.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,285.38 : 188,072.34 = 75,855.06 : x
  2. Step 2: Convert to fraction form
    136,285.38/188,072.34 = 75,855.06/x
  3. Step 3: Cross multiply
    136,285.38x = 188,072.34 × 75,855.06
  4. Step 4: Simplify right side
    136,285.38x = 14,266,238,635.04
  5. Step 5: Solve for x
    x = 14,266,238,635.04/136,285.38
  6. Step 6: Final answer
    x = 104,679.16

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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.