Home / 103,019.54-142,170.46-57,699.43

Finding the Fourth Proportional to 103,019.54, 142,170.46 and 57,699.43

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Solution

The fourth proportional to 103,019.54, 142,170.46 and 57,699.43 is: 79,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,019.54 : 142,170.46 = 57,699.43 : x
  2. Step 2: Convert to fraction form
    103,019.54/142,170.46 = 57,699.43/x
  3. Step 3: Cross multiply
    103,019.54x = 142,170.46 × 57,699.43
  4. Step 4: Simplify right side
    103,019.54x = 8,203,154,005.16
  5. Step 5: Solve for x
    x = 8,203,154,005.16/103,019.54
  6. Step 6: Final answer
    x = 79,627.17

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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.