Home / 103,810.93-155,813.27-53,247.92

Finding the Fourth Proportional to 103,810.93, 155,813.27 and 53,247.92

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Solution

The fourth proportional to 103,810.93, 155,813.27 and 53,247.92 is: 79,921.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,810.93 : 155,813.27 = 53,247.92 : x
  2. Step 2: Convert to fraction form
    103,810.93/155,813.27 = 53,247.92/x
  3. Step 3: Cross multiply
    103,810.93x = 155,813.27 × 53,247.92
  4. Step 4: Simplify right side
    103,810.93x = 8,296,732,535.90
  5. Step 5: Solve for x
    x = 8,296,732,535.90/103,810.93
  6. Step 6: Final answer
    x = 79,921.57

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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.