Home / 126,289.08-174,297.78-81,018.18

Finding the Fourth Proportional to 126,289.08, 174,297.78 and 81,018.18

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Solution

The fourth proportional to 126,289.08, 174,297.78 and 81,018.18 is: 111,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,289.08 : 174,297.78 = 81,018.18 : x
  2. Step 2: Convert to fraction form
    126,289.08/174,297.78 = 81,018.18/x
  3. Step 3: Cross multiply
    126,289.08x = 174,297.78 × 81,018.18
  4. Step 4: Simplify right side
    126,289.08x = 14,121,288,913.64
  5. Step 5: Solve for x
    x = 14,121,288,913.64/126,289.08
  6. Step 6: Final answer
    x = 111,817.18

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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.