Home / 161,670.85-242,400.66-77,428.27

Finding the Fourth Proportional to 161,670.85, 242,400.66 and 77,428.27

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Solution

The fourth proportional to 161,670.85, 242,400.66 and 77,428.27 is: 116,091.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,670.85 : 242,400.66 = 77,428.27 : x
  2. Step 2: Convert to fraction form
    161,670.85/242,400.66 = 77,428.27/x
  3. Step 3: Cross multiply
    161,670.85x = 242,400.66 × 77,428.27
  4. Step 4: Simplify right side
    161,670.85x = 18,768,663,750.66
  5. Step 5: Solve for x
    x = 18,768,663,750.66/161,670.85
  6. Step 6: Final answer
    x = 116,091.82

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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.