Home / 143,740.32-198,433.98-111,402.96

Finding the Fourth Proportional to 143,740.32, 198,433.98 and 111,402.96

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Solution

The fourth proportional to 143,740.32, 198,433.98 and 111,402.96 is: 153,792.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,740.32 : 198,433.98 = 111,402.96 : x
  2. Step 2: Convert to fraction form
    143,740.32/198,433.98 = 111,402.96/x
  3. Step 3: Cross multiply
    143,740.32x = 198,433.98 × 111,402.96
  4. Step 4: Simplify right side
    143,740.32x = 22,106,132,736.58
  5. Step 5: Solve for x
    x = 22,106,132,736.58/143,740.32
  6. Step 6: Final answer
    x = 153,792.15

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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.