Home / 122,398.72-168,775.32-84,607.36

Finding the Fourth Proportional to 122,398.72, 168,775.32 and 84,607.36

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Solution

The fourth proportional to 122,398.72, 168,775.32 and 84,607.36 is: 116,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,398.72 : 168,775.32 = 84,607.36 : x
  2. Step 2: Convert to fraction form
    122,398.72/168,775.32 = 84,607.36/x
  3. Step 3: Cross multiply
    122,398.72x = 168,775.32 × 84,607.36
  4. Step 4: Simplify right side
    122,398.72x = 14,279,634,258.36
  5. Step 5: Solve for x
    x = 14,279,634,258.36/122,398.72
  6. Step 6: Final answer
    x = 116,664.90

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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.