Home / 119,904.15-165,467.76-66,189.20

Finding the Fourth Proportional to 119,904.15, 165,467.76 and 66,189.20

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Solution

The fourth proportional to 119,904.15, 165,467.76 and 66,189.20 is: 91,341.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,904.15 : 165,467.76 = 66,189.20 : x
  2. Step 2: Convert to fraction form
    119,904.15/165,467.76 = 66,189.20/x
  3. Step 3: Cross multiply
    119,904.15x = 165,467.76 × 66,189.20
  4. Step 4: Simplify right side
    119,904.15x = 10,952,178,660.19
  5. Step 5: Solve for x
    x = 10,952,178,660.19/119,904.15
  6. Step 6: Final answer
    x = 91,341.11

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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.