Home / 103,293.24-142,530.96-57,969.48

Finding the Fourth Proportional to 103,293.24, 142,530.96 and 57,969.48

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Solution

The fourth proportional to 103,293.24, 142,530.96 and 57,969.48 is: 79,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,293.24 : 142,530.96 = 57,969.48 : x
  2. Step 2: Convert to fraction form
    103,293.24/142,530.96 = 57,969.48/x
  3. Step 3: Cross multiply
    103,293.24x = 142,530.96 × 57,969.48
  4. Step 4: Simplify right side
    103,293.24x = 8,262,445,635.10
  5. Step 5: Solve for x
    x = 8,262,445,635.10/103,293.24
  6. Step 6: Final answer
    x = 79,990.19

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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.