Home / 103,428.06-155,151.06-28,548.24

Finding the Fourth Proportional to 103,428.06, 155,151.06 and 28,548.24

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Solution

The fourth proportional to 103,428.06, 155,151.06 and 28,548.24 is: 42,824.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,428.06 : 155,151.06 = 28,548.24 : x
  2. Step 2: Convert to fraction form
    103,428.06/155,151.06 = 28,548.24/x
  3. Step 3: Cross multiply
    103,428.06x = 155,151.06 × 28,548.24
  4. Step 4: Simplify right side
    103,428.06x = 4,429,289,697.13
  5. Step 5: Solve for x
    x = 4,429,289,697.13/103,428.06
  6. Step 6: Final answer
    x = 42,824.84

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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.