Home / 143,646.15-198,266.57-83,207.01

Finding the Fourth Proportional to 143,646.15, 198,266.57 and 83,207.01

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Solution

The fourth proportional to 143,646.15, 198,266.57 and 83,207.01 is: 114,845.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,646.15 : 198,266.57 = 83,207.01 : x
  2. Step 2: Convert to fraction form
    143,646.15/198,266.57 = 83,207.01/x
  3. Step 3: Cross multiply
    143,646.15x = 198,266.57 × 83,207.01
  4. Step 4: Simplify right side
    143,646.15x = 16,497,168,056.62
  5. Step 5: Solve for x
    x = 16,497,168,056.62/143,646.15
  6. Step 6: Final answer
    x = 114,845.88

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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.