Home / 103,766.20-155,795.10-64,400.20

Finding the Fourth Proportional to 103,766.20, 155,795.10 and 64,400.20

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Solution

The fourth proportional to 103,766.20, 155,795.10 and 64,400.20 is: 96,690.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,766.20 : 155,795.10 = 64,400.20 : x
  2. Step 2: Convert to fraction form
    103,766.20/155,795.10 = 64,400.20/x
  3. Step 3: Cross multiply
    103,766.20x = 155,795.10 × 64,400.20
  4. Step 4: Simplify right side
    103,766.20x = 10,033,235,599.02
  5. Step 5: Solve for x
    x = 10,033,235,599.02/103,766.20
  6. Step 6: Final answer
    x = 96,690.79

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1.5x scale

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.