Home / 126,149.12-174,159.36-83,765.76

Finding the Fourth Proportional to 126,149.12, 174,159.36 and 83,765.76

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Solution

The fourth proportional to 126,149.12, 174,159.36 and 83,765.76 is: 115,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,149.12 : 174,159.36 = 83,765.76 : x
  2. Step 2: Convert to fraction form
    126,149.12/174,159.36 = 83,765.76/x
  3. Step 3: Cross multiply
    126,149.12x = 174,159.36 × 83,765.76
  4. Step 4: Simplify right side
    126,149.12x = 14,588,591,151.51
  5. Step 5: Solve for x
    x = 14,588,591,151.51/126,149.12
  6. Step 6: Final answer
    x = 115,645.60

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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.