Home / 126,424.22-174,470.72-72,709.27

Finding the Fourth Proportional to 126,424.22, 174,470.72 and 72,709.27

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Solution

The fourth proportional to 126,424.22, 174,470.72 and 72,709.27 is: 100,341.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,424.22 : 174,470.72 = 72,709.27 : x
  2. Step 2: Convert to fraction form
    126,424.22/174,470.72 = 72,709.27/x
  3. Step 3: Cross multiply
    126,424.22x = 174,470.72 × 72,709.27
  4. Step 4: Simplify right side
    126,424.22x = 12,685,637,887.85
  5. Step 5: Solve for x
    x = 12,685,637,887.85/126,424.22
  6. Step 6: Final answer
    x = 100,341.84

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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.