Home / 103,949.88-143,487.72-61,508.32

Finding the Fourth Proportional to 103,949.88, 143,487.72 and 61,508.32

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Solution

The fourth proportional to 103,949.88, 143,487.72 and 61,508.32 is: 84,903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,949.88 : 143,487.72 = 61,508.32 : x
  2. Step 2: Convert to fraction form
    103,949.88/143,487.72 = 61,508.32/x
  3. Step 3: Cross multiply
    103,949.88x = 143,487.72 × 61,508.32
  4. Step 4: Simplify right side
    103,949.88x = 8,825,688,597.83
  5. Step 5: Solve for x
    x = 8,825,688,597.83/103,949.88
  6. Step 6: Final answer
    x = 84,903.31

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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.