Home / 161,908.20-242,756.70-145,319.40

Finding the Fourth Proportional to 161,908.20, 242,756.70 and 145,319.40

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Solution

The fourth proportional to 161,908.20, 242,756.70 and 145,319.40 is: 217,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,908.20 : 242,756.70 = 145,319.40 : x
  2. Step 2: Convert to fraction form
    161,908.20/242,756.70 = 145,319.40/x
  3. Step 3: Cross multiply
    161,908.20x = 242,756.70 × 145,319.40
  4. Step 4: Simplify right side
    161,908.20x = 35,277,257,989.98
  5. Step 5: Solve for x
    x = 35,277,257,989.98/161,908.20
  6. Step 6: Final answer
    x = 217,884.32

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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.