Home / 76,159.96-105,104.03-42,168.45

Finding the Fourth Proportional to 76,159.96, 105,104.03 and 42,168.45

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Solution

The fourth proportional to 76,159.96, 105,104.03 and 42,168.45 is: 58,194.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,159.96 : 105,104.03 = 42,168.45 : x
  2. Step 2: Convert to fraction form
    76,159.96/105,104.03 = 42,168.45/x
  3. Step 3: Cross multiply
    76,159.96x = 105,104.03 × 42,168.45
  4. Step 4: Simplify right side
    76,159.96x = 4,432,073,863.14
  5. Step 5: Solve for x
    x = 4,432,073,863.14/76,159.96
  6. Step 6: Final answer
    x = 58,194.28

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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.