Home / 161,507.10-242,519.85-109,148.70

Finding the Fourth Proportional to 161,507.10, 242,519.85 and 109,148.70

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Solution

The fourth proportional to 161,507.10, 242,519.85 and 109,148.70 is: 163,898.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,507.10 : 242,519.85 = 109,148.70 : x
  2. Step 2: Convert to fraction form
    161,507.10/242,519.85 = 109,148.70/x
  3. Step 3: Cross multiply
    161,507.10x = 242,519.85 × 109,148.70
  4. Step 4: Simplify right side
    161,507.10x = 26,470,726,351.70
  5. Step 5: Solve for x
    x = 26,470,726,351.70/161,507.10
  6. Step 6: Final answer
    x = 163,898.22

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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.