Home / 135,731.88-187,332.48-75,321.93

Finding the Fourth Proportional to 135,731.88, 187,332.48 and 75,321.93

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Solution

The fourth proportional to 135,731.88, 187,332.48 and 75,321.93 is: 103,956.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,731.88 : 187,332.48 = 75,321.93 : x
  2. Step 2: Convert to fraction form
    135,731.88/187,332.48 = 75,321.93/x
  3. Step 3: Cross multiply
    135,731.88x = 187,332.48 × 75,321.93
  4. Step 4: Simplify right side
    135,731.88x = 14,110,243,945.29
  5. Step 5: Solve for x
    x = 14,110,243,945.29/135,731.88
  6. Step 6: Final answer
    x = 103,956.74

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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.