Home / 136,146.23-187,867.41-75,707.12

Finding the Fourth Proportional to 136,146.23, 187,867.41 and 75,707.12

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Solution

The fourth proportional to 136,146.23, 187,867.41 and 75,707.12 is: 104,467.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,146.23 : 187,867.41 = 75,707.12 : x
  2. Step 2: Convert to fraction form
    136,146.23/187,867.41 = 75,707.12/x
  3. Step 3: Cross multiply
    136,146.23x = 187,867.41 × 75,707.12
  4. Step 4: Simplify right side
    136,146.23x = 14,222,900,552.96
  5. Step 5: Solve for x
    x = 14,222,900,552.96/136,146.23
  6. Step 6: Final answer
    x = 104,467.83

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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.