Home / 109,440.42-151,025.75-61,693.80

Finding the Fourth Proportional to 109,440.42, 151,025.75 and 61,693.80

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Solution

The fourth proportional to 109,440.42, 151,025.75 and 61,693.80 is: 85,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,440.42 : 151,025.75 = 61,693.80 : x
  2. Step 2: Convert to fraction form
    109,440.42/151,025.75 = 61,693.80/x
  3. Step 3: Cross multiply
    109,440.42x = 151,025.75 × 61,693.80
  4. Step 4: Simplify right side
    109,440.42x = 9,317,352,415.35
  5. Step 5: Solve for x
    x = 9,317,352,415.35/109,440.42
  6. Step 6: Final answer
    x = 85,136.30

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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.