Home / 187,703.04-281,520.54-75,378.72

Finding the Fourth Proportional to 187,703.04, 281,520.54 and 75,378.72

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Solution

The fourth proportional to 187,703.04, 281,520.54 and 75,378.72 is: 113,054.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,703.04 : 281,520.54 = 75,378.72 : x
  2. Step 2: Convert to fraction form
    187,703.04/281,520.54 = 75,378.72/x
  3. Step 3: Cross multiply
    187,703.04x = 281,520.54 × 75,378.72
  4. Step 4: Simplify right side
    187,703.04x = 21,220,657,958.91
  5. Step 5: Solve for x
    x = 21,220,657,958.91/187,703.04
  6. Step 6: Final answer
    x = 113,054.42

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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.