Home / 103,814.10-155,721.15-101,845.80

Finding the Fourth Proportional to 103,814.10, 155,721.15 and 101,845.80

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Solution

The fourth proportional to 103,814.10, 155,721.15 and 101,845.80 is: 152,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,814.10 : 155,721.15 = 101,845.80 : x
  2. Step 2: Convert to fraction form
    103,814.10/155,721.15 = 101,845.80/x
  3. Step 3: Cross multiply
    103,814.10x = 155,721.15 × 101,845.80
  4. Step 4: Simplify right side
    103,814.10x = 15,859,545,098.67
  5. Step 5: Solve for x
    x = 15,859,545,098.67/103,814.10
  6. Step 6: Final answer
    x = 152,768.70

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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.