Home / 126,529.32-189,813.66-42,263.40

Finding the Fourth Proportional to 126,529.32, 189,813.66 and 42,263.40

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Solution

The fourth proportional to 126,529.32, 189,813.66 and 42,263.40 is: 63,401.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,529.32 : 189,813.66 = 42,263.40 : x
  2. Step 2: Convert to fraction form
    126,529.32/189,813.66 = 42,263.40/x
  3. Step 3: Cross multiply
    126,529.32x = 189,813.66 × 42,263.40
  4. Step 4: Simplify right side
    126,529.32x = 8,022,170,638.04
  5. Step 5: Solve for x
    x = 8,022,170,638.04/126,529.32
  6. Step 6: Final answer
    x = 63,401.67

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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.