Home / 136,851.93-188,853.75-76,423.68

Finding the Fourth Proportional to 136,851.93, 188,853.75 and 76,423.68

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Solution

The fourth proportional to 136,851.93, 188,853.75 and 76,423.68 is: 105,463.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,851.93 : 188,853.75 = 76,423.68 : x
  2. Step 2: Convert to fraction form
    136,851.93/188,853.75 = 76,423.68/x
  3. Step 3: Cross multiply
    136,851.93x = 188,853.75 × 76,423.68
  4. Step 4: Simplify right side
    136,851.93x = 14,432,898,556.80
  5. Step 5: Solve for x
    x = 14,432,898,556.80/136,851.93
  6. Step 6: Final answer
    x = 105,463.61

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1.5x scale

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.