Home / 102,865.63-154,297.33-78,058.03

Finding the Fourth Proportional to 102,865.63, 154,297.33 and 78,058.03

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Solution

The fourth proportional to 102,865.63, 154,297.33 and 78,058.03 is: 117,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,865.63 : 154,297.33 = 78,058.03 : x
  2. Step 2: Convert to fraction form
    102,865.63/154,297.33 = 78,058.03/x
  3. Step 3: Cross multiply
    102,865.63x = 154,297.33 × 78,058.03
  4. Step 4: Simplify right side
    102,865.63x = 12,044,145,033.17
  5. Step 5: Solve for x
    x = 12,044,145,033.17/102,865.63
  6. Step 6: Final answer
    x = 117,086.20

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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.