Home / 105,539.76-158,308.02-42,375.96

Finding the Fourth Proportional to 105,539.76, 158,308.02 and 42,375.96

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Solution

The fourth proportional to 105,539.76, 158,308.02 and 42,375.96 is: 63,563.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,539.76 : 158,308.02 = 42,375.96 : x
  2. Step 2: Convert to fraction form
    105,539.76/158,308.02 = 42,375.96/x
  3. Step 3: Cross multiply
    105,539.76x = 158,308.02 × 42,375.96
  4. Step 4: Simplify right side
    105,539.76x = 6,708,454,323.20
  5. Step 5: Solve for x
    x = 6,708,454,323.20/105,539.76
  6. Step 6: Final answer
    x = 63,563.29

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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.