Home / 126,906.24-175,128-70,317.12

Finding the Fourth Proportional to 126,906.24, 175,128 and 70,317.12

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Solution

The fourth proportional to 126,906.24, 175,128 and 70,317.12 is: 97,036.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,906.24 : 175,128 = 70,317.12 : x
  2. Step 2: Convert to fraction form
    126,906.24/175,128 = 70,317.12/x
  3. Step 3: Cross multiply
    126,906.24x = 175,128 × 70,317.12
  4. Step 4: Simplify right side
    126,906.24x = 12,314,496,591.36
  5. Step 5: Solve for x
    x = 12,314,496,591.36/126,906.24
  6. Step 6: Final answer
    x = 97,036.18

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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.