Home / 109,550.64-151,166.88-61,801.20

Finding the Fourth Proportional to 109,550.64, 151,166.88 and 61,801.20

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Solution

The fourth proportional to 109,550.64, 151,166.88 and 61,801.20 is: 85,278.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,550.64 : 151,166.88 = 61,801.20 : x
  2. Step 2: Convert to fraction form
    109,550.64/151,166.88 = 61,801.20/x
  3. Step 3: Cross multiply
    109,550.64x = 151,166.88 × 61,801.20
  4. Step 4: Simplify right side
    109,550.64x = 9,342,294,584.26
  5. Step 5: Solve for x
    x = 9,342,294,584.26/109,550.64
  6. Step 6: Final answer
    x = 85,278.32

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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.