Home / 119,622.30-165,079.26-65,904.72

Finding the Fourth Proportional to 119,622.30, 165,079.26 and 65,904.72

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Solution

The fourth proportional to 119,622.30, 165,079.26 and 65,904.72 is: 90,948.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,622.30 : 165,079.26 = 65,904.72 : x
  2. Step 2: Convert to fraction form
    119,622.30/165,079.26 = 65,904.72/x
  3. Step 3: Cross multiply
    119,622.30x = 165,079.26 × 65,904.72
  4. Step 4: Simplify right side
    119,622.30x = 10,879,502,408.11
  5. Step 5: Solve for x
    x = 10,879,502,408.11/119,622.30
  6. Step 6: Final answer
    x = 90,948.78

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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.