Home / 126,177.21-174,128.44-72,473

Finding the Fourth Proportional to 126,177.21, 174,128.44 and 72,473

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Solution

The fourth proportional to 126,177.21, 174,128.44 and 72,473 is: 100,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,177.21 : 174,128.44 = 72,473 : x
  2. Step 2: Convert to fraction form
    126,177.21/174,128.44 = 72,473/x
  3. Step 3: Cross multiply
    126,177.21x = 174,128.44 × 72,473
  4. Step 4: Simplify right side
    126,177.21x = 12,619,610,432.12
  5. Step 5: Solve for x
    x = 12,619,610,432.12/126,177.21
  6. Step 6: Final answer
    x = 100,014.97

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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.