Home / 143,607.60-198,148.47-83,174.64

Finding the Fourth Proportional to 143,607.60, 198,148.47 and 83,174.64

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Solution

The fourth proportional to 143,607.60, 198,148.47 and 83,174.64 is: 114,763.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,607.60 : 198,148.47 = 83,174.64 : x
  2. Step 2: Convert to fraction form
    143,607.60/198,148.47 = 83,174.64/x
  3. Step 3: Cross multiply
    143,607.60x = 198,148.47 × 83,174.64
  4. Step 4: Simplify right side
    143,607.60x = 16,480,927,658.80
  5. Step 5: Solve for x
    x = 16,480,927,658.80/143,607.60
  6. Step 6: Final answer
    x = 114,763.62

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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.