Home / 138,678.30-191,376.03-75,016.02

Finding the Fourth Proportional to 138,678.30, 191,376.03 and 75,016.02

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Solution

The fourth proportional to 138,678.30, 191,376.03 and 75,016.02 is: 103,522.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,678.30 : 191,376.03 = 75,016.02 : x
  2. Step 2: Convert to fraction form
    138,678.30/191,376.03 = 75,016.02/x
  3. Step 3: Cross multiply
    138,678.30x = 191,376.03 × 75,016.02
  4. Step 4: Simplify right side
    138,678.30x = 14,356,268,094.00
  5. Step 5: Solve for x
    x = 14,356,268,094.00/138,678.30
  6. Step 6: Final answer
    x = 103,522.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.