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Finding the Fourth Proportional to 161,574.89, 242,249.90 and 71,568.74

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Solution

The fourth proportional to 161,574.89, 242,249.90 and 71,568.74 is: 107,303.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,574.89 : 242,249.90 = 71,568.74 : x
  2. Step 2: Convert to fraction form
    161,574.89/242,249.90 = 71,568.74/x
  3. Step 3: Cross multiply
    161,574.89x = 242,249.90 × 71,568.74
  4. Step 4: Simplify right side
    161,574.89x = 17,337,518,539.03
  5. Step 5: Solve for x
    x = 17,337,518,539.03/161,574.89
  6. Step 6: Final answer
    x = 107,303.30

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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.