Home / 126,405.06-174,439.88-69,816.43

Finding the Fourth Proportional to 126,405.06, 174,439.88 and 69,816.43

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Solution

The fourth proportional to 126,405.06, 174,439.88 and 69,816.43 is: 96,347.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,405.06 : 174,439.88 = 69,816.43 : x
  2. Step 2: Convert to fraction form
    126,405.06/174,439.88 = 69,816.43/x
  3. Step 3: Cross multiply
    126,405.06x = 174,439.88 × 69,816.43
  4. Step 4: Simplify right side
    126,405.06x = 12,178,769,671.23
  5. Step 5: Solve for x
    x = 12,178,769,671.23/126,405.06
  6. Step 6: Final answer
    x = 96,347.17

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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.