Home / 122,298.21-168,854.49-76,427.91

Finding the Fourth Proportional to 122,298.21, 168,854.49 and 76,427.91

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Solution

The fourth proportional to 122,298.21, 168,854.49 and 76,427.91 is: 105,522.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,298.21 : 168,854.49 = 76,427.91 : x
  2. Step 2: Convert to fraction form
    122,298.21/168,854.49 = 76,427.91/x
  3. Step 3: Cross multiply
    122,298.21x = 168,854.49 × 76,427.91
  4. Step 4: Simplify right side
    122,298.21x = 12,905,195,764.82
  5. Step 5: Solve for x
    x = 12,905,195,764.82/122,298.21
  6. Step 6: Final answer
    x = 105,522.36

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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.