Home / 136,178.55-187,931.75-82,433.16

Finding the Fourth Proportional to 136,178.55, 187,931.75 and 82,433.16

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Solution

The fourth proportional to 136,178.55, 187,931.75 and 82,433.16 is: 113,761.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,178.55 : 187,931.75 = 82,433.16 : x
  2. Step 2: Convert to fraction form
    136,178.55/187,931.75 = 82,433.16/x
  3. Step 3: Cross multiply
    136,178.55x = 187,931.75 × 82,433.16
  4. Step 4: Simplify right side
    136,178.55x = 15,491,808,016.83
  5. Step 5: Solve for x
    x = 15,491,808,016.83/136,178.55
  6. Step 6: Final answer
    x = 113,761.00

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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.