Home / 136,556.28-188,429.19-76,124.00

Finding the Fourth Proportional to 136,556.28, 188,429.19 and 76,124.00

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Solution

The fourth proportional to 136,556.28, 188,429.19 and 76,124.00 is: 105,040.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,556.28 : 188,429.19 = 76,124.00 : x
  2. Step 2: Convert to fraction form
    136,556.28/188,429.19 = 76,124.00/x
  3. Step 3: Cross multiply
    136,556.28x = 188,429.19 × 76,124.00
  4. Step 4: Simplify right side
    136,556.28x = 14,343,983,845.17
  5. Step 5: Solve for x
    x = 14,343,983,845.17/136,556.28
  6. Step 6: Final answer
    x = 105,040.82

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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.