Home / 161,678.45-242,621.46-108,430.56

Finding the Fourth Proportional to 161,678.45, 242,621.46 and 108,430.56

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Solution

The fourth proportional to 161,678.45, 242,621.46 and 108,430.56 is: 162,715.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,678.45 : 242,621.46 = 108,430.56 : x
  2. Step 2: Convert to fraction form
    161,678.45/242,621.46 = 108,430.56/x
  3. Step 3: Cross multiply
    161,678.45x = 242,621.46 × 108,430.56
  4. Step 4: Simplify right side
    161,678.45x = 26,307,580,272.60
  5. Step 5: Solve for x
    x = 26,307,580,272.60/161,678.45
  6. Step 6: Final answer
    x = 162,715.44

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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.