Home / 102,015.47-153,022.85-27,135.53

Finding the Fourth Proportional to 102,015.47, 153,022.85 and 27,135.53

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Solution

The fourth proportional to 102,015.47, 153,022.85 and 27,135.53 is: 40,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,015.47 : 153,022.85 = 27,135.53 : x
  2. Step 2: Convert to fraction form
    102,015.47/153,022.85 = 27,135.53/x
  3. Step 3: Cross multiply
    102,015.47x = 153,022.85 × 27,135.53
  4. Step 4: Simplify right side
    102,015.47x = 4,152,356,136.86
  5. Step 5: Solve for x
    x = 4,152,356,136.86/102,015.47
  6. Step 6: Final answer
    x = 40,703.20

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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.