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Finding the Fourth Proportional to 104,189.99, 155,369.89 and 103,242.70

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Solution

The fourth proportional to 104,189.99, 155,369.89 and 103,242.70 is: 153,957.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,189.99 : 155,369.89 = 103,242.70 : x
  2. Step 2: Convert to fraction form
    104,189.99/155,369.89 = 103,242.70/x
  3. Step 3: Cross multiply
    104,189.99x = 155,369.89 × 103,242.70
  4. Step 4: Simplify right side
    104,189.99x = 16,040,805,649.24
  5. Step 5: Solve for x
    x = 16,040,805,649.24/104,189.99
  6. Step 6: Final answer
    x = 153,957.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.