Home / 143,545.44-198,127.86-111,216.09

Finding the Fourth Proportional to 143,545.44, 198,127.86 and 111,216.09

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Solution

The fourth proportional to 143,545.44, 198,127.86 and 111,216.09 is: 153,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,545.44 : 198,127.86 = 111,216.09 : x
  2. Step 2: Convert to fraction form
    143,545.44/198,127.86 = 111,216.09/x
  3. Step 3: Cross multiply
    143,545.44x = 198,127.86 × 111,216.09
  4. Step 4: Simplify right side
    143,545.44x = 22,035,005,909.27
  5. Step 5: Solve for x
    x = 22,035,005,909.27/143,545.44
  6. Step 6: Final answer
    x = 153,505.44

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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.