Home / 103,319.69-142,579.31-57,994.11

Finding the Fourth Proportional to 103,319.69, 142,579.31 and 57,994.11

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Solution

The fourth proportional to 103,319.69, 142,579.31 and 57,994.11 is: 80,030.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,319.69 : 142,579.31 = 57,994.11 : x
  2. Step 2: Convert to fraction form
    103,319.69/142,579.31 = 57,994.11/x
  3. Step 3: Cross multiply
    103,319.69x = 142,579.31 × 57,994.11
  4. Step 4: Simplify right side
    103,319.69x = 8,268,759,897.89
  5. Step 5: Solve for x
    x = 8,268,759,897.89/103,319.69
  6. Step 6: Final answer
    x = 80,030.83

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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.