Home / 143,699.16-198,308.35-80,038.02

Finding the Fourth Proportional to 143,699.16, 198,308.35 and 80,038.02

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Solution

The fourth proportional to 143,699.16, 198,308.35 and 80,038.02 is: 110,454.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,699.16 : 198,308.35 = 80,038.02 : x
  2. Step 2: Convert to fraction form
    143,699.16/198,308.35 = 80,038.02/x
  3. Step 3: Cross multiply
    143,699.16x = 198,308.35 × 80,038.02
  4. Step 4: Simplify right side
    143,699.16x = 15,872,207,683.47
  5. Step 5: Solve for x
    x = 15,872,207,683.47/143,699.16
  6. Step 6: Final answer
    x = 110,454.42

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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.