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Finding the Fourth Proportional to 103,949.40, 155,658.42 and 57,150.84

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Solution

The fourth proportional to 103,949.40, 155,658.42 and 57,150.84 is: 85,580.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,949.40 : 155,658.42 = 57,150.84 : x
  2. Step 2: Convert to fraction form
    103,949.40/155,658.42 = 57,150.84/x
  3. Step 3: Cross multiply
    103,949.40x = 155,658.42 × 57,150.84
  4. Step 4: Simplify right side
    103,949.40x = 8,896,009,456.07
  5. Step 5: Solve for x
    x = 8,896,009,456.07/103,949.40
  6. Step 6: Final answer
    x = 85,580.19

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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.