Home / 141,213.12-194,802.05-90,172.19

Finding the Fourth Proportional to 141,213.12, 194,802.05 and 90,172.19

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Solution

The fourth proportional to 141,213.12, 194,802.05 and 90,172.19 is: 124,391.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,213.12 : 194,802.05 = 90,172.19 : x
  2. Step 2: Convert to fraction form
    141,213.12/194,802.05 = 90,172.19/x
  3. Step 3: Cross multiply
    141,213.12x = 194,802.05 × 90,172.19
  4. Step 4: Simplify right side
    141,213.12x = 17,565,726,954.86
  5. Step 5: Solve for x
    x = 17,565,726,954.86/141,213.12
  6. Step 6: Final answer
    x = 124,391.61

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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.