Home / 126,228.40-174,203.64-72,530.80

Finding the Fourth Proportional to 126,228.40, 174,203.64 and 72,530.80

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Solution

The fourth proportional to 126,228.40, 174,203.64 and 72,530.80 is: 100,097.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,228.40 : 174,203.64 = 72,530.80 : x
  2. Step 2: Convert to fraction form
    126,228.40/174,203.64 = 72,530.80/x
  3. Step 3: Cross multiply
    126,228.40x = 174,203.64 × 72,530.80
  4. Step 4: Simplify right side
    126,228.40x = 12,635,129,372.11
  5. Step 5: Solve for x
    x = 12,635,129,372.11/126,228.40
  6. Step 6: Final answer
    x = 100,097.36

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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.