Home / 135,981.10-187,502.64-92,967.60

Finding the Fourth Proportional to 135,981.10, 187,502.64 and 92,967.60

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Solution

The fourth proportional to 135,981.10, 187,502.64 and 92,967.60 is: 128,191.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,981.10 : 187,502.64 = 92,967.60 : x
  2. Step 2: Convert to fraction form
    135,981.10/187,502.64 = 92,967.60/x
  3. Step 3: Cross multiply
    135,981.10x = 187,502.64 × 92,967.60
  4. Step 4: Simplify right side
    135,981.10x = 17,431,670,434.46
  5. Step 5: Solve for x
    x = 17,431,670,434.46/135,981.10
  6. Step 6: Final answer
    x = 128,191.86

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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.