Home / 161,776.20-242,442.78-102,653.40

Finding the Fourth Proportional to 161,776.20, 242,442.78 and 102,653.40

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Solution

The fourth proportional to 161,776.20, 242,442.78 and 102,653.40 is: 153,839.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,776.20 : 242,442.78 = 102,653.40 : x
  2. Step 2: Convert to fraction form
    161,776.20/242,442.78 = 102,653.40/x
  3. Step 3: Cross multiply
    161,776.20x = 242,442.78 × 102,653.40
  4. Step 4: Simplify right side
    161,776.20x = 24,887,575,672.45
  5. Step 5: Solve for x
    x = 24,887,575,672.45/161,776.20
  6. Step 6: Final answer
    x = 153,839.54

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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.