Home / 126,749.40-174,914.18-70,160.78

Finding the Fourth Proportional to 126,749.40, 174,914.18 and 70,160.78

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Solution

The fourth proportional to 126,749.40, 174,914.18 and 70,160.78 is: 96,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,749.40 : 174,914.18 = 70,160.78 : x
  2. Step 2: Convert to fraction form
    126,749.40/174,914.18 = 70,160.78/x
  3. Step 3: Cross multiply
    126,749.40x = 174,914.18 × 70,160.78
  4. Step 4: Simplify right side
    126,749.40x = 12,272,114,995.52
  5. Step 5: Solve for x
    x = 12,272,114,995.52/126,749.40
  6. Step 6: Final answer
    x = 96,821.88

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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.