Home / 103,639.57-155,210.22-59,131.38

Finding the Fourth Proportional to 103,639.57, 155,210.22 and 59,131.38

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Solution

The fourth proportional to 103,639.57, 155,210.22 and 59,131.38 is: 88,554.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.57 : 155,210.22 = 59,131.38 : x
  2. Step 2: Convert to fraction form
    103,639.57/155,210.22 = 59,131.38/x
  3. Step 3: Cross multiply
    103,639.57x = 155,210.22 × 59,131.38
  4. Step 4: Simplify right side
    103,639.57x = 9,177,795,302.48
  5. Step 5: Solve for x
    x = 9,177,795,302.48/103,639.57
  6. Step 6: Final answer
    x = 88,554.94

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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.