Home / 102,938.84-142,058.12-57,616.44

Finding the Fourth Proportional to 102,938.84, 142,058.12 and 57,616.44

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Solution

The fourth proportional to 102,938.84, 142,058.12 and 57,616.44 is: 79,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,938.84 : 142,058.12 = 57,616.44 : x
  2. Step 2: Convert to fraction form
    102,938.84/142,058.12 = 57,616.44/x
  3. Step 3: Cross multiply
    102,938.84x = 142,058.12 × 57,616.44
  4. Step 4: Simplify right side
    102,938.84x = 8,184,883,147.49
  5. Step 5: Solve for x
    x = 8,184,883,147.49/102,938.84
  6. Step 6: Final answer
    x = 79,512.10

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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.