Home / 117,288.02-161,603.97-79,496.66

Finding the Fourth Proportional to 117,288.02, 161,603.97 and 79,496.66

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Solution

The fourth proportional to 117,288.02, 161,603.97 and 79,496.66 is: 109,533.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,288.02 : 161,603.97 = 79,496.66 : x
  2. Step 2: Convert to fraction form
    117,288.02/161,603.97 = 79,496.66/x
  3. Step 3: Cross multiply
    117,288.02x = 161,603.97 × 79,496.66
  4. Step 4: Simplify right side
    117,288.02x = 12,846,975,857.74
  5. Step 5: Solve for x
    x = 12,846,975,857.74/117,288.02
  6. Step 6: Final answer
    x = 109,533.57

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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.