Home / 145,581.49-218,149.89-98,020.92

Finding the Fourth Proportional to 145,581.49, 218,149.89 and 98,020.92

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Solution

The fourth proportional to 145,581.49, 218,149.89 and 98,020.92 is: 146,881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,581.49 : 218,149.89 = 98,020.92 : x
  2. Step 2: Convert to fraction form
    145,581.49/218,149.89 = 98,020.92/x
  3. Step 3: Cross multiply
    145,581.49x = 218,149.89 × 98,020.92
  4. Step 4: Simplify right side
    145,581.49x = 21,383,252,915.70
  5. Step 5: Solve for x
    x = 21,383,252,915.70/145,581.49
  6. Step 6: Final answer
    x = 146,881.67

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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.