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Finding the Fourth Proportional to 137,897.84, 206,858.67 and 38,058.05

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Solution

The fourth proportional to 137,897.84, 206,858.67 and 38,058.05 is: 57,090.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,897.84 : 206,858.67 = 38,058.05 : x
  2. Step 2: Convert to fraction form
    137,897.84/206,858.67 = 38,058.05/x
  3. Step 3: Cross multiply
    137,897.84x = 206,858.67 × 38,058.05
  4. Step 4: Simplify right side
    137,897.84x = 7,872,636,381.21
  5. Step 5: Solve for x
    x = 7,872,636,381.21/137,897.84
  6. Step 6: Final answer
    x = 57,090.36

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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.