Home / 126,422.14-174,496.08-78,648.34

Finding the Fourth Proportional to 126,422.14, 174,496.08 and 78,648.34

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Solution

The fourth proportional to 126,422.14, 174,496.08 and 78,648.34 is: 108,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,422.14 : 174,496.08 = 78,648.34 : x
  2. Step 2: Convert to fraction form
    126,422.14/174,496.08 = 78,648.34/x
  3. Step 3: Cross multiply
    126,422.14x = 174,496.08 × 78,648.34
  4. Step 4: Simplify right side
    126,422.14x = 13,723,827,028.51
  5. Step 5: Solve for x
    x = 13,723,827,028.51/126,422.14
  6. Step 6: Final answer
    x = 108,555.57

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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.