Home / 127,138.15-175,452.88-69,782.84

Finding the Fourth Proportional to 127,138.15, 175,452.88 and 69,782.84

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Solution

The fourth proportional to 127,138.15, 175,452.88 and 69,782.84 is: 96,301.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,138.15 : 175,452.88 = 69,782.84 : x
  2. Step 2: Convert to fraction form
    127,138.15/175,452.88 = 69,782.84/x
  3. Step 3: Cross multiply
    127,138.15x = 175,452.88 × 69,782.84
  4. Step 4: Simplify right side
    127,138.15x = 12,243,600,078.12
  5. Step 5: Solve for x
    x = 12,243,600,078.12/127,138.15
  6. Step 6: Final answer
    x = 96,301.54

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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.