Home / 126,356.13-174,298.37-81,644.13

Finding the Fourth Proportional to 126,356.13, 174,298.37 and 81,644.13

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Solution

The fourth proportional to 126,356.13, 174,298.37 and 81,644.13 is: 112,621.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,356.13 : 174,298.37 = 81,644.13 : x
  2. Step 2: Convert to fraction form
    126,356.13/174,298.37 = 81,644.13/x
  3. Step 3: Cross multiply
    126,356.13x = 174,298.37 × 81,644.13
  4. Step 4: Simplify right side
    126,356.13x = 14,230,438,370.85
  5. Step 5: Solve for x
    x = 14,230,438,370.85/126,356.13
  6. Step 6: Final answer
    x = 112,621.67

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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.