Home / 126,176.71-174,127.75-72,472.50

Finding the Fourth Proportional to 126,176.71, 174,127.75 and 72,472.50

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Solution

The fourth proportional to 126,176.71, 174,127.75 and 72,472.50 is: 100,014.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,176.71 : 174,127.75 = 72,472.50 : x
  2. Step 2: Convert to fraction form
    126,176.71/174,127.75 = 72,472.50/x
  3. Step 3: Cross multiply
    126,176.71x = 174,127.75 × 72,472.50
  4. Step 4: Simplify right side
    126,176.71x = 12,619,473,361.88
  5. Step 5: Solve for x
    x = 12,619,473,361.88/126,176.71
  6. Step 6: Final answer
    x = 100,014.28

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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.