Home / 153,982.73-212,560.95-93,572.78

Finding the Fourth Proportional to 153,982.73, 212,560.95 and 93,572.78

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Solution

The fourth proportional to 153,982.73, 212,560.95 and 93,572.78 is: 129,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,982.73 : 212,560.95 = 93,572.78 : x
  2. Step 2: Convert to fraction form
    153,982.73/212,560.95 = 93,572.78/x
  3. Step 3: Cross multiply
    153,982.73x = 212,560.95 × 93,572.78
  4. Step 4: Simplify right side
    153,982.73x = 19,889,919,010.94
  5. Step 5: Solve for x
    x = 19,889,919,010.94/153,982.73
  6. Step 6: Final answer
    x = 129,169.80

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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.