Home / 112,738.19-155,580.39-61,755.62

Finding the Fourth Proportional to 112,738.19, 155,580.39 and 61,755.62

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Solution

The fourth proportional to 112,738.19, 155,580.39 and 61,755.62 is: 85,223.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,738.19 : 155,580.39 = 61,755.62 : x
  2. Step 2: Convert to fraction form
    112,738.19/155,580.39 = 61,755.62/x
  3. Step 3: Cross multiply
    112,738.19x = 155,580.39 × 61,755.62
  4. Step 4: Simplify right side
    112,738.19x = 9,607,962,666.39
  5. Step 5: Solve for x
    x = 9,607,962,666.39/112,738.19
  6. Step 6: Final answer
    x = 85,223.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.