Home / 126,212.13-174,141.66-77,141.32

Finding the Fourth Proportional to 126,212.13, 174,141.66 and 77,141.32

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Solution

The fourth proportional to 126,212.13, 174,141.66 and 77,141.32 is: 106,436.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,212.13 : 174,141.66 = 77,141.32 : x
  2. Step 2: Convert to fraction form
    126,212.13/174,141.66 = 77,141.32/x
  3. Step 3: Cross multiply
    126,212.13x = 174,141.66 × 77,141.32
  4. Step 4: Simplify right side
    126,212.13x = 13,433,517,519.39
  5. Step 5: Solve for x
    x = 13,433,517,519.39/126,212.13
  6. Step 6: Final answer
    x = 106,436.03

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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.