Home / 161,440.14-242,160.45-77,180.50

Finding the Fourth Proportional to 161,440.14, 242,160.45 and 77,180.50

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Solution

The fourth proportional to 161,440.14, 242,160.45 and 77,180.50 is: 115,770.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,440.14 : 242,160.45 = 77,180.50 : x
  2. Step 2: Convert to fraction form
    161,440.14/242,160.45 = 77,180.50/x
  3. Step 3: Cross multiply
    161,440.14x = 242,160.45 × 77,180.50
  4. Step 4: Simplify right side
    161,440.14x = 18,690,064,611.23
  5. Step 5: Solve for x
    x = 18,690,064,611.23/161,440.14
  6. Step 6: Final answer
    x = 115,770.86

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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.