Home / 105,420.20-158,157.30-60,967.40

Finding the Fourth Proportional to 105,420.20, 158,157.30 and 60,967.40

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Solution

The fourth proportional to 105,420.20, 158,157.30 and 60,967.40 is: 91,466.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,420.20 : 158,157.30 = 60,967.40 : x
  2. Step 2: Convert to fraction form
    105,420.20/158,157.30 = 60,967.40/x
  3. Step 3: Cross multiply
    105,420.20x = 158,157.30 × 60,967.40
  4. Step 4: Simplify right side
    105,420.20x = 9,642,439,372.02
  5. Step 5: Solve for x
    x = 9,642,439,372.02/105,420.20
  6. Step 6: Final answer
    x = 91,466.71

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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.