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Finding the Fourth Proportional to 103,248.52, 154,860.40 and 28,376.28

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Solution

The fourth proportional to 103,248.52, 154,860.40 and 28,376.28 is: 42,561.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,248.52 : 154,860.40 = 28,376.28 : x
  2. Step 2: Convert to fraction form
    103,248.52/154,860.40 = 28,376.28/x
  3. Step 3: Cross multiply
    103,248.52x = 154,860.40 × 28,376.28
  4. Step 4: Simplify right side
    103,248.52x = 4,394,362,071.31
  5. Step 5: Solve for x
    x = 4,394,362,071.31/103,248.52
  6. Step 6: Final answer
    x = 42,561.02

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.