Home / 143,817.32-198,468.88-80,159.22

Finding the Fourth Proportional to 143,817.32, 198,468.88 and 80,159.22

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Solution

The fourth proportional to 143,817.32, 198,468.88 and 80,159.22 is: 110,620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,817.32 : 198,468.88 = 80,159.22 : x
  2. Step 2: Convert to fraction form
    143,817.32/198,468.88 = 80,159.22/x
  3. Step 3: Cross multiply
    143,817.32x = 198,468.88 × 80,159.22
  4. Step 4: Simplify right side
    143,817.32x = 15,909,110,615.07
  5. Step 5: Solve for x
    x = 15,909,110,615.07/143,817.32
  6. Step 6: Final answer
    x = 110,620.27

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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.