Home / 143,795.04-198,463.20-83,404.32

Finding the Fourth Proportional to 143,795.04, 198,463.20 and 83,404.32

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Solution

The fourth proportional to 143,795.04, 198,463.20 and 83,404.32 is: 115,113.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,795.04 : 198,463.20 = 83,404.32 : x
  2. Step 2: Convert to fraction form
    143,795.04/198,463.20 = 83,404.32/x
  3. Step 3: Cross multiply
    143,795.04x = 198,463.20 × 83,404.32
  4. Step 4: Simplify right side
    143,795.04x = 16,552,688,241.02
  5. Step 5: Solve for x
    x = 16,552,688,241.02/143,795.04
  6. Step 6: Final answer
    x = 115,113.07

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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.