Home / 126,838.47-175,038.38-76,527.75

Finding the Fourth Proportional to 126,838.47, 175,038.38 and 76,527.75

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Solution

The fourth proportional to 126,838.47, 175,038.38 and 76,527.75 is: 105,609.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,838.47 : 175,038.38 = 76,527.75 : x
  2. Step 2: Convert to fraction form
    126,838.47/175,038.38 = 76,527.75/x
  3. Step 3: Cross multiply
    126,838.47x = 175,038.38 × 76,527.75
  4. Step 4: Simplify right side
    126,838.47x = 13,395,293,002.41
  5. Step 5: Solve for x
    x = 13,395,293,002.41/126,838.47
  6. Step 6: Final answer
    x = 105,609.07

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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.