Home / 126,556.02-189,740.04-76,624.20

Finding the Fourth Proportional to 126,556.02, 189,740.04 and 76,624.20

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Solution

The fourth proportional to 126,556.02, 189,740.04 and 76,624.20 is: 114,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,556.02 : 189,740.04 = 76,624.20 : x
  2. Step 2: Convert to fraction form
    126,556.02/189,740.04 = 76,624.20/x
  3. Step 3: Cross multiply
    126,556.02x = 189,740.04 × 76,624.20
  4. Step 4: Simplify right side
    126,556.02x = 14,538,678,772.97
  5. Step 5: Solve for x
    x = 14,538,678,772.97/126,556.02
  6. Step 6: Final answer
    x = 114,879.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.