Home / 126,408.48-189,710.64-47,594.40

Finding the Fourth Proportional to 126,408.48, 189,710.64 and 47,594.40

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Solution

The fourth proportional to 126,408.48, 189,710.64 and 47,594.40 is: 71,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,408.48 : 189,710.64 = 47,594.40 : x
  2. Step 2: Convert to fraction form
    126,408.48/189,710.64 = 47,594.40/x
  3. Step 3: Cross multiply
    126,408.48x = 189,710.64 × 47,594.40
  4. Step 4: Simplify right side
    126,408.48x = 9,029,164,084.42
  5. Step 5: Solve for x
    x = 9,029,164,084.42/126,408.48
  6. Step 6: Final answer
    x = 71,428.47

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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.