Home / 105,882.36-146,117.91-58,138.79

Finding the Fourth Proportional to 105,882.36, 146,117.91 and 58,138.79

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Solution

The fourth proportional to 105,882.36, 146,117.91 and 58,138.79 is: 80,231.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,882.36 : 146,117.91 = 58,138.79 : x
  2. Step 2: Convert to fraction form
    105,882.36/146,117.91 = 58,138.79/x
  3. Step 3: Cross multiply
    105,882.36x = 146,117.91 × 58,138.79
  4. Step 4: Simplify right side
    105,882.36x = 8,495,118,484.73
  5. Step 5: Solve for x
    x = 8,495,118,484.73/105,882.36
  6. Step 6: Final answer
    x = 80,231.67

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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.