Home / 103,476.28-155,323-91,705.36

Finding the Fourth Proportional to 103,476.28, 155,323 and 91,705.36

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Solution

The fourth proportional to 103,476.28, 155,323 and 91,705.36 is: 137,654.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,476.28 : 155,323 = 91,705.36 : x
  2. Step 2: Convert to fraction form
    103,476.28/155,323 = 91,705.36/x
  3. Step 3: Cross multiply
    103,476.28x = 155,323 × 91,705.36
  4. Step 4: Simplify right side
    103,476.28x = 14,243,951,631.28
  5. Step 5: Solve for x
    x = 14,243,951,631.28/103,476.28
  6. Step 6: Final answer
    x = 137,654.27

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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.