Home / 143,744.58-198,174.24-100,666.26

Finding the Fourth Proportional to 143,744.58, 198,174.24 and 100,666.26

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Solution

The fourth proportional to 143,744.58, 198,174.24 and 100,666.26 is: 138,784.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,744.58 : 198,174.24 = 100,666.26 : x
  2. Step 2: Convert to fraction form
    143,744.58/198,174.24 = 100,666.26/x
  3. Step 3: Cross multiply
    143,744.58x = 198,174.24 × 100,666.26
  4. Step 4: Simplify right side
    143,744.58x = 19,949,459,569.14
  5. Step 5: Solve for x
    x = 19,949,459,569.14/143,744.58
  6. Step 6: Final answer
    x = 138,784.08

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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.