Home / 126,122.85-174,042.54-72,404.37

Finding the Fourth Proportional to 126,122.85, 174,042.54 and 72,404.37

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Solution

The fourth proportional to 126,122.85, 174,042.54 and 72,404.37 is: 99,914.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,122.85 : 174,042.54 = 72,404.37 : x
  2. Step 2: Convert to fraction form
    126,122.85/174,042.54 = 72,404.37/x
  3. Step 3: Cross multiply
    126,122.85x = 174,042.54 × 72,404.37
  4. Step 4: Simplify right side
    126,122.85x = 12,601,440,461.90
  5. Step 5: Solve for x
    x = 12,601,440,461.90/126,122.85
  6. Step 6: Final answer
    x = 99,914.02

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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.