Home / 117,612.54-162,372.57-77,443.02

Finding the Fourth Proportional to 117,612.54, 162,372.57 and 77,443.02

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Solution

The fourth proportional to 117,612.54, 162,372.57 and 77,443.02 is: 106,915.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,612.54 : 162,372.57 = 77,443.02 : x
  2. Step 2: Convert to fraction form
    117,612.54/162,372.57 = 77,443.02/x
  3. Step 3: Cross multiply
    117,612.54x = 162,372.57 × 77,443.02
  4. Step 4: Simplify right side
    117,612.54x = 12,574,622,185.96
  5. Step 5: Solve for x
    x = 12,574,622,185.96/117,612.54
  6. Step 6: Final answer
    x = 106,915.66

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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.