Home / 113,463.81-169,721.65-79,727.46

Finding the Fourth Proportional to 113,463.81, 169,721.65 and 79,727.46

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Solution

The fourth proportional to 113,463.81, 169,721.65 and 79,727.46 is: 119,258.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,463.81 : 169,721.65 = 79,727.46 : x
  2. Step 2: Convert to fraction form
    113,463.81/169,721.65 = 79,727.46/x
  3. Step 3: Cross multiply
    113,463.81x = 169,721.65 × 79,727.46
  4. Step 4: Simplify right side
    113,463.81x = 13,531,477,180.97
  5. Step 5: Solve for x
    x = 13,531,477,180.97/113,463.81
  6. Step 6: Final answer
    x = 119,258.09

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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.