Home / 143,822.89-198,475.80-80,159.32

Finding the Fourth Proportional to 143,822.89, 198,475.80 and 80,159.32

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Solution

The fourth proportional to 143,822.89, 198,475.80 and 80,159.32 is: 110,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,822.89 : 198,475.80 = 80,159.32 : x
  2. Step 2: Convert to fraction form
    143,822.89/198,475.80 = 80,159.32/x
  3. Step 3: Cross multiply
    143,822.89x = 198,475.80 × 80,159.32
  4. Step 4: Simplify right side
    143,822.89x = 15,909,684,172.08
  5. Step 5: Solve for x
    x = 15,909,684,172.08/143,822.89
  6. Step 6: Final answer
    x = 110,619.98

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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.