Home / 103,687.11-155,409.27-39,603.27

Finding the Fourth Proportional to 103,687.11, 155,409.27 and 39,603.27

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Solution

The fourth proportional to 103,687.11, 155,409.27 and 39,603.27 is: 59,358.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,687.11 : 155,409.27 = 39,603.27 : x
  2. Step 2: Convert to fraction form
    103,687.11/155,409.27 = 39,603.27/x
  3. Step 3: Cross multiply
    103,687.11x = 155,409.27 × 39,603.27
  4. Step 4: Simplify right side
    103,687.11x = 6,154,715,280.31
  5. Step 5: Solve for x
    x = 6,154,715,280.31/103,687.11
  6. Step 6: Final answer
    x = 59,358.54

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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.