Home / 119,679.42-165,123.27-77,262.06

Finding the Fourth Proportional to 119,679.42, 165,123.27 and 77,262.06

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Solution

The fourth proportional to 119,679.42, 165,123.27 and 77,262.06 is: 106,599.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,679.42 : 165,123.27 = 77,262.06 : x
  2. Step 2: Convert to fraction form
    119,679.42/165,123.27 = 77,262.06/x
  3. Step 3: Cross multiply
    119,679.42x = 165,123.27 × 77,262.06
  4. Step 4: Simplify right side
    119,679.42x = 12,757,763,994.14
  5. Step 5: Solve for x
    x = 12,757,763,994.14/119,679.42
  6. Step 6: Final answer
    x = 106,599.48

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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.