Home / 143,730.48-198,354.18-80,068.26

Finding the Fourth Proportional to 143,730.48, 198,354.18 and 80,068.26

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Solution

The fourth proportional to 143,730.48, 198,354.18 and 80,068.26 is: 110,497.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,730.48 : 198,354.18 = 80,068.26 : x
  2. Step 2: Convert to fraction form
    143,730.48/198,354.18 = 80,068.26/x
  3. Step 3: Cross multiply
    143,730.48x = 198,354.18 × 80,068.26
  4. Step 4: Simplify right side
    143,730.48x = 15,881,874,056.33
  5. Step 5: Solve for x
    x = 15,881,874,056.33/143,730.48
  6. Step 6: Final answer
    x = 110,497.61

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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.