Home / 103,063.25-142,236.45-57,740.94

Finding the Fourth Proportional to 103,063.25, 142,236.45 and 57,740.94

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Solution

The fourth proportional to 103,063.25, 142,236.45 and 57,740.94 is: 79,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,063.25 : 142,236.45 = 57,740.94 : x
  2. Step 2: Convert to fraction form
    103,063.25/142,236.45 = 57,740.94/x
  3. Step 3: Cross multiply
    103,063.25x = 142,236.45 × 57,740.94
  4. Step 4: Simplify right side
    103,063.25x = 8,212,866,325.26
  5. Step 5: Solve for x
    x = 8,212,866,325.26/103,063.25
  6. Step 6: Final answer
    x = 79,687.64

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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.