Home / 126,438.48-189,667.44-47,550.96

Finding the Fourth Proportional to 126,438.48, 189,667.44 and 47,550.96

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Solution

The fourth proportional to 126,438.48, 189,667.44 and 47,550.96 is: 71,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,438.48 : 189,667.44 = 47,550.96 : x
  2. Step 2: Convert to fraction form
    126,438.48/189,667.44 = 47,550.96/x
  3. Step 3: Cross multiply
    126,438.48x = 189,667.44 × 47,550.96
  4. Step 4: Simplify right side
    126,438.48x = 9,018,868,852.74
  5. Step 5: Solve for x
    x = 9,018,868,852.74/126,438.48
  6. Step 6: Final answer
    x = 71,330.10

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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.