Home / 136,091.72-187,811.38-75,679.50

Finding the Fourth Proportional to 136,091.72, 187,811.38 and 75,679.50

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Solution

The fourth proportional to 136,091.72, 187,811.38 and 75,679.50 is: 104,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,091.72 : 187,811.38 = 75,679.50 : x
  2. Step 2: Convert to fraction form
    136,091.72/187,811.38 = 75,679.50/x
  3. Step 3: Cross multiply
    136,091.72x = 187,811.38 × 75,679.50
  4. Step 4: Simplify right side
    136,091.72x = 14,213,471,332.71
  5. Step 5: Solve for x
    x = 14,213,471,332.71/136,091.72
  6. Step 6: Final answer
    x = 104,440.38

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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.