Home / 158,812.02-219,164.43-86,217.89

Finding the Fourth Proportional to 158,812.02, 219,164.43 and 86,217.89

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Solution

The fourth proportional to 158,812.02, 219,164.43 and 86,217.89 is: 118,982.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,812.02 : 219,164.43 = 86,217.89 : x
  2. Step 2: Convert to fraction form
    158,812.02/219,164.43 = 86,217.89/x
  3. Step 3: Cross multiply
    158,812.02x = 219,164.43 × 86,217.89
  4. Step 4: Simplify right side
    158,812.02x = 18,895,895,794.35
  5. Step 5: Solve for x
    x = 18,895,895,794.35/158,812.02
  6. Step 6: Final answer
    x = 118,982.78

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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.