Home / 126,309.36-174,308.34-69,720.72

Finding the Fourth Proportional to 126,309.36, 174,308.34 and 69,720.72

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Solution

The fourth proportional to 126,309.36, 174,308.34 and 69,720.72 is: 96,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,309.36 : 174,308.34 = 69,720.72 : x
  2. Step 2: Convert to fraction form
    126,309.36/174,308.34 = 69,720.72/x
  3. Step 3: Cross multiply
    126,309.36x = 174,308.34 × 69,720.72
  4. Step 4: Simplify right side
    126,309.36x = 12,152,902,966.80
  5. Step 5: Solve for x
    x = 12,152,902,966.80/126,309.36
  6. Step 6: Final answer
    x = 96,215.38

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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.