Home / 143,794.62-198,354.09-89,986.20

Finding the Fourth Proportional to 143,794.62, 198,354.09 and 89,986.20

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Solution

The fourth proportional to 143,794.62, 198,354.09 and 89,986.20 is: 124,129.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,794.62 : 198,354.09 = 89,986.20 : x
  2. Step 2: Convert to fraction form
    143,794.62/198,354.09 = 89,986.20/x
  3. Step 3: Cross multiply
    143,794.62x = 198,354.09 × 89,986.20
  4. Step 4: Simplify right side
    143,794.62x = 17,849,130,813.56
  5. Step 5: Solve for x
    x = 17,849,130,813.56/143,794.62
  6. Step 6: Final answer
    x = 124,129.34

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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.