Home / 138,747.04-191,470.98-75,084.64

Finding the Fourth Proportional to 138,747.04, 191,470.98 and 75,084.64

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Solution

The fourth proportional to 138,747.04, 191,470.98 and 75,084.64 is: 103,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,747.04 : 191,470.98 = 75,084.64 : x
  2. Step 2: Convert to fraction form
    138,747.04/191,470.98 = 75,084.64/x
  3. Step 3: Cross multiply
    138,747.04x = 191,470.98 × 75,084.64
  4. Step 4: Simplify right side
    138,747.04x = 14,376,529,603.75
  5. Step 5: Solve for x
    x = 14,376,529,603.75/138,747.04
  6. Step 6: Final answer
    x = 103,616.84

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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.