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Finding the Fourth Proportional to 102,410.88, 153,642.24 and 28,538.88

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Solution

The fourth proportional to 102,410.88, 153,642.24 and 28,538.88 is: 42,815.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,410.88 : 153,642.24 = 28,538.88 : x
  2. Step 2: Convert to fraction form
    102,410.88/153,642.24 = 28,538.88/x
  3. Step 3: Cross multiply
    102,410.88x = 153,642.24 × 28,538.88
  4. Step 4: Simplify right side
    102,410.88x = 4,384,777,450.29
  5. Step 5: Solve for x
    x = 4,384,777,450.29/102,410.88
  6. Step 6: Final answer
    x = 42,815.54

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1.5x scale

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.