Home / 126,613.19-189,832.31-55,501.67

Finding the Fourth Proportional to 126,613.19, 189,832.31 and 55,501.67

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Solution

The fourth proportional to 126,613.19, 189,832.31 and 55,501.67 is: 83,214.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,613.19 : 189,832.31 = 55,501.67 : x
  2. Step 2: Convert to fraction form
    126,613.19/189,832.31 = 55,501.67/x
  3. Step 3: Cross multiply
    126,613.19x = 189,832.31 × 55,501.67
  4. Step 4: Simplify right side
    126,613.19x = 10,536,009,947.45
  5. Step 5: Solve for x
    x = 10,536,009,947.45/126,613.19
  6. Step 6: Final answer
    x = 83,214.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.