Home / 115,769.76-159,711.56-68,001.58

Finding the Fourth Proportional to 115,769.76, 159,711.56 and 68,001.58

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Solution

The fourth proportional to 115,769.76, 159,711.56 and 68,001.58 is: 93,812.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,769.76 : 159,711.56 = 68,001.58 : x
  2. Step 2: Convert to fraction form
    115,769.76/159,711.56 = 68,001.58/x
  3. Step 3: Cross multiply
    115,769.76x = 159,711.56 × 68,001.58
  4. Step 4: Simplify right side
    115,769.76x = 10,860,638,424.26
  5. Step 5: Solve for x
    x = 10,860,638,424.26/115,769.76
  6. Step 6: Final answer
    x = 93,812.39

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1.5x scale

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.