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Finding the Fourth Proportional to 103,394.20, 155,237.10 and 64,028.20

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Solution

The fourth proportional to 103,394.20, 155,237.10 and 64,028.20 is: 96,132.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,394.20 : 155,237.10 = 64,028.20 : x
  2. Step 2: Convert to fraction form
    103,394.20/155,237.10 = 64,028.20/x
  3. Step 3: Cross multiply
    103,394.20x = 155,237.10 × 64,028.20
  4. Step 4: Simplify right side
    103,394.20x = 9,939,552,086.22
  5. Step 5: Solve for x
    x = 9,939,552,086.22/103,394.20
  6. Step 6: Final answer
    x = 96,132.59

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1.5x scale

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.