Home / 137,421.02-206,126.13-57,438.33

Finding the Fourth Proportional to 137,421.02, 206,126.13 and 57,438.33

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Solution

The fourth proportional to 137,421.02, 206,126.13 and 57,438.33 is: 86,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,421.02 : 206,126.13 = 57,438.33 : x
  2. Step 2: Convert to fraction form
    137,421.02/206,126.13 = 57,438.33/x
  3. Step 3: Cross multiply
    137,421.02x = 206,126.13 × 57,438.33
  4. Step 4: Simplify right side
    137,421.02x = 11,839,540,676.56
  5. Step 5: Solve for x
    x = 11,839,540,676.56/137,421.02
  6. Step 6: Final answer
    x = 86,155.24

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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.