Home / 126,220.47-174,133.40-80,890.12

Finding the Fourth Proportional to 126,220.47, 174,133.40 and 80,890.12

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Solution

The fourth proportional to 126,220.47, 174,133.40 and 80,890.12 is: 111,595.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,220.47 : 174,133.40 = 80,890.12 : x
  2. Step 2: Convert to fraction form
    126,220.47/174,133.40 = 80,890.12/x
  3. Step 3: Cross multiply
    126,220.47x = 174,133.40 × 80,890.12
  4. Step 4: Simplify right side
    126,220.47x = 14,085,671,890.23
  5. Step 5: Solve for x
    x = 14,085,671,890.23/126,220.47
  6. Step 6: Final answer
    x = 111,595.78

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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.