Home / 120,051.18-165,668.33-66,335.04

Finding the Fourth Proportional to 120,051.18, 165,668.33 and 66,335.04

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Solution

The fourth proportional to 120,051.18, 165,668.33 and 66,335.04 is: 91,541.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,051.18 : 165,668.33 = 66,335.04 : x
  2. Step 2: Convert to fraction form
    120,051.18/165,668.33 = 66,335.04/x
  3. Step 3: Cross multiply
    120,051.18x = 165,668.33 × 66,335.04
  4. Step 4: Simplify right side
    120,051.18x = 10,989,615,463.12
  5. Step 5: Solve for x
    x = 10,989,615,463.12/120,051.18
  6. Step 6: Final answer
    x = 91,541.09

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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.