Home / 103,265.32-142,503.90-57,942.52

Finding the Fourth Proportional to 103,265.32, 142,503.90 and 57,942.52

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Solution

The fourth proportional to 103,265.32, 142,503.90 and 57,942.52 is: 79,959.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,265.32 : 142,503.90 = 57,942.52 : x
  2. Step 2: Convert to fraction form
    103,265.32/142,503.90 = 57,942.52/x
  3. Step 3: Cross multiply
    103,265.32x = 142,503.90 × 57,942.52
  4. Step 4: Simplify right side
    103,265.32x = 8,257,035,075.83
  5. Step 5: Solve for x
    x = 8,257,035,075.83/103,265.32
  6. Step 6: Final answer
    x = 79,959.42

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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.