Home / 126,424.14-174,498.84-78,650.34

Finding the Fourth Proportional to 126,424.14, 174,498.84 and 78,650.34

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Solution

The fourth proportional to 126,424.14, 174,498.84 and 78,650.34 is: 108,558.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,424.14 : 174,498.84 = 78,650.34 : x
  2. Step 2: Convert to fraction form
    126,424.14/174,498.84 = 78,650.34/x
  3. Step 3: Cross multiply
    126,424.14x = 174,498.84 × 78,650.34
  4. Step 4: Simplify right side
    126,424.14x = 13,724,393,095.61
  5. Step 5: Solve for x
    x = 13,724,393,095.61/126,424.14
  6. Step 6: Final answer
    x = 108,558.33

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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.