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Finding the Fourth Proportional to 70,150.04, 105,241.08 and 20,230.52

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Solution

The fourth proportional to 70,150.04, 105,241.08 and 20,230.52 is: 30,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,150.04 : 105,241.08 = 20,230.52 : x
  2. Step 2: Convert to fraction form
    70,150.04/105,241.08 = 20,230.52/x
  3. Step 3: Cross multiply
    70,150.04x = 105,241.08 × 20,230.52
  4. Step 4: Simplify right side
    70,150.04x = 2,129,081,773.76
  5. Step 5: Solve for x
    x = 2,129,081,773.76/70,150.04
  6. Step 6: Final answer
    x = 30,350.40

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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.