Home / 103,046.40-142,209.30-57,734.46

Finding the Fourth Proportional to 103,046.40, 142,209.30 and 57,734.46

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Solution

The fourth proportional to 103,046.40, 142,209.30 and 57,734.46 is: 79,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,046.40 : 142,209.30 = 57,734.46 : x
  2. Step 2: Convert to fraction form
    103,046.40/142,209.30 = 57,734.46/x
  3. Step 3: Cross multiply
    103,046.40x = 142,209.30 × 57,734.46
  4. Step 4: Simplify right side
    103,046.40x = 8,210,377,142.48
  5. Step 5: Solve for x
    x = 8,210,377,142.48/103,046.40
  6. Step 6: Final answer
    x = 79,676.51

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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.