Home / 122,078.82-183,176.55-77,755.62

Finding the Fourth Proportional to 122,078.82, 183,176.55 and 77,755.62

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Solution

The fourth proportional to 122,078.82, 183,176.55 and 77,755.62 is: 116,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,078.82 : 183,176.55 = 77,755.62 : x
  2. Step 2: Convert to fraction form
    122,078.82/183,176.55 = 77,755.62/x
  3. Step 3: Cross multiply
    122,078.82x = 183,176.55 × 77,755.62
  4. Step 4: Simplify right side
    122,078.82x = 14,243,006,214.71
  5. Step 5: Solve for x
    x = 14,243,006,214.71/122,078.82
  6. Step 6: Final answer
    x = 116,670.58

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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.