Home / 117,786.26-162,598.11-77,521.16

Finding the Fourth Proportional to 117,786.26, 162,598.11 and 77,521.16

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Solution

The fourth proportional to 117,786.26, 162,598.11 and 77,521.16 is: 107,014.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,786.26 : 162,598.11 = 77,521.16 : x
  2. Step 2: Convert to fraction form
    117,786.26/162,598.11 = 77,521.16/x
  3. Step 3: Cross multiply
    117,786.26x = 162,598.11 × 77,521.16
  4. Step 4: Simplify right side
    117,786.26x = 12,604,794,101.01
  5. Step 5: Solve for x
    x = 12,604,794,101.01/117,786.26
  6. Step 6: Final answer
    x = 107,014.13

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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.