Home / 142,252.97-213,390.35-42,405.53

Finding the Fourth Proportional to 142,252.97, 213,390.35 and 42,405.53

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Solution

The fourth proportional to 142,252.97, 213,390.35 and 42,405.53 is: 63,611.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,252.97 : 213,390.35 = 42,405.53 : x
  2. Step 2: Convert to fraction form
    142,252.97/213,390.35 = 42,405.53/x
  3. Step 3: Cross multiply
    142,252.97x = 213,390.35 × 42,405.53
  4. Step 4: Simplify right side
    142,252.97x = 9,048,930,676.61
  5. Step 5: Solve for x
    x = 9,048,930,676.61/142,252.97
  6. Step 6: Final answer
    x = 63,611.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.