Home / 112,499.89-155,252.09-61,515.81

Finding the Fourth Proportional to 112,499.89, 155,252.09 and 61,515.81

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Solution

The fourth proportional to 112,499.89, 155,252.09 and 61,515.81 is: 84,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,499.89 : 155,252.09 = 61,515.81 : x
  2. Step 2: Convert to fraction form
    112,499.89/155,252.09 = 61,515.81/x
  3. Step 3: Cross multiply
    112,499.89x = 155,252.09 × 61,515.81
  4. Step 4: Simplify right side
    112,499.89x = 9,550,458,224.33
  5. Step 5: Solve for x
    x = 9,550,458,224.33/112,499.89
  6. Step 6: Final answer
    x = 84,893.05

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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.