Home / 103,618.35-155,542.73-64,219.95

Finding the Fourth Proportional to 103,618.35, 155,542.73 and 64,219.95

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Solution

The fourth proportional to 103,618.35, 155,542.73 and 64,219.95 is: 96,401.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,618.35 : 155,542.73 = 64,219.95 : x
  2. Step 2: Convert to fraction form
    103,618.35/155,542.73 = 64,219.95/x
  3. Step 3: Cross multiply
    103,618.35x = 155,542.73 × 64,219.95
  4. Step 4: Simplify right side
    103,618.35x = 9,988,946,343.46
  5. Step 5: Solve for x
    x = 9,988,946,343.46/103,618.35
  6. Step 6: Final answer
    x = 96,401.33

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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.