Home / 119,728.32-165,223.09-66,018.30

Finding the Fourth Proportional to 119,728.32, 165,223.09 and 66,018.30

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Solution

The fourth proportional to 119,728.32, 165,223.09 and 66,018.30 is: 91,104.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,728.32 : 165,223.09 = 66,018.30 : x
  2. Step 2: Convert to fraction form
    119,728.32/165,223.09 = 66,018.30/x
  3. Step 3: Cross multiply
    119,728.32x = 165,223.09 × 66,018.30
  4. Step 4: Simplify right side
    119,728.32x = 10,907,747,522.55
  5. Step 5: Solve for x
    x = 10,907,747,522.55/119,728.32
  6. Step 6: Final answer
    x = 91,104.16

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1.5x scale

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.