Home / 172,466.10-258,682.95-77,702.58

Finding the Fourth Proportional to 172,466.10, 258,682.95 and 77,702.58

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Solution

The fourth proportional to 172,466.10, 258,682.95 and 77,702.58 is: 116,546.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,466.10 : 258,682.95 = 77,702.58 : x
  2. Step 2: Convert to fraction form
    172,466.10/258,682.95 = 77,702.58/x
  3. Step 3: Cross multiply
    172,466.10x = 258,682.95 × 77,702.58
  4. Step 4: Simplify right side
    172,466.10x = 20,100,332,617.01
  5. Step 5: Solve for x
    x = 20,100,332,617.01/172,466.10
  6. Step 6: Final answer
    x = 116,546.57

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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.