Home / 105,493.20-158,183.04-42,281.60

Finding the Fourth Proportional to 105,493.20, 158,183.04 and 42,281.60

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Solution

The fourth proportional to 105,493.20, 158,183.04 and 42,281.60 is: 63,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,493.20 : 158,183.04 = 42,281.60 : x
  2. Step 2: Convert to fraction form
    105,493.20/158,183.04 = 42,281.60/x
  3. Step 3: Cross multiply
    105,493.20x = 158,183.04 × 42,281.60
  4. Step 4: Simplify right side
    105,493.20x = 6,688,232,024.06
  5. Step 5: Solve for x
    x = 6,688,232,024.06/105,493.20
  6. Step 6: Final answer
    x = 63,399.65

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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.