Home / 167,616.17-251,258.18-78,710.53

Finding the Fourth Proportional to 167,616.17, 251,258.18 and 78,710.53

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Solution

The fourth proportional to 167,616.17, 251,258.18 and 78,710.53 is: 117,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,616.17 : 251,258.18 = 78,710.53 : x
  2. Step 2: Convert to fraction form
    167,616.17/251,258.18 = 78,710.53/x
  3. Step 3: Cross multiply
    167,616.17x = 251,258.18 × 78,710.53
  4. Step 4: Simplify right side
    167,616.17x = 19,776,663,258.34
  5. Step 5: Solve for x
    x = 19,776,663,258.34/167,616.17
  6. Step 6: Final answer
    x = 117,987.80

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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.