Home / 161,909.20-242,758.20-145,320.40

Finding the Fourth Proportional to 161,909.20, 242,758.20 and 145,320.40

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Solution

The fourth proportional to 161,909.20, 242,758.20 and 145,320.40 is: 217,885.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,909.20 : 242,758.20 = 145,320.40 : x
  2. Step 2: Convert to fraction form
    161,909.20/242,758.20 = 145,320.40/x
  3. Step 3: Cross multiply
    161,909.20x = 242,758.20 × 145,320.40
  4. Step 4: Simplify right side
    161,909.20x = 35,277,718,727.28
  5. Step 5: Solve for x
    x = 35,277,718,727.28/161,909.20
  6. Step 6: Final answer
    x = 217,885.82

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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.