Home / 136,876.27-188,887.21-76,447.93

Finding the Fourth Proportional to 136,876.27, 188,887.21 and 76,447.93

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Solution

The fourth proportional to 136,876.27, 188,887.21 and 76,447.93 is: 105,497.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,876.27 : 188,887.21 = 76,447.93 : x
  2. Step 2: Convert to fraction form
    136,876.27/188,887.21 = 76,447.93/x
  3. Step 3: Cross multiply
    136,876.27x = 188,887.21 × 76,447.93
  4. Step 4: Simplify right side
    136,876.27x = 14,440,036,207.98
  5. Step 5: Solve for x
    x = 14,440,036,207.98/136,876.27
  6. Step 6: Final answer
    x = 105,497.00

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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.