Home / 103,947.88-143,484.95-61,506.31

Finding the Fourth Proportional to 103,947.88, 143,484.95 and 61,506.31

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Solution

The fourth proportional to 103,947.88, 143,484.95 and 61,506.31 is: 84,900.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,947.88 : 143,484.95 = 61,506.31 : x
  2. Step 2: Convert to fraction form
    103,947.88/143,484.95 = 61,506.31/x
  3. Step 3: Cross multiply
    103,947.88x = 143,484.95 × 61,506.31
  4. Step 4: Simplify right side
    103,947.88x = 8,825,229,815.03
  5. Step 5: Solve for x
    x = 8,825,229,815.03/103,947.88
  6. Step 6: Final answer
    x = 84,900.53

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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.