Home / 119,208.18-164,579.54-78,956.45

Finding the Fourth Proportional to 119,208.18, 164,579.54 and 78,956.45

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Solution

The fourth proportional to 119,208.18, 164,579.54 and 78,956.45 is: 109,007.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,208.18 : 164,579.54 = 78,956.45 : x
  2. Step 2: Convert to fraction form
    119,208.18/164,579.54 = 78,956.45/x
  3. Step 3: Cross multiply
    119,208.18x = 164,579.54 × 78,956.45
  4. Step 4: Simplify right side
    119,208.18x = 12,994,615,003.35
  5. Step 5: Solve for x
    x = 12,994,615,003.35/119,208.18
  6. Step 6: Final answer
    x = 109,007.75

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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.