Home / 112,830.44-155,707.71-61,842.77

Finding the Fourth Proportional to 112,830.44, 155,707.71 and 61,842.77

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Solution

The fourth proportional to 112,830.44, 155,707.71 and 61,842.77 is: 85,343.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,830.44 : 155,707.71 = 61,842.77 : x
  2. Step 2: Convert to fraction form
    112,830.44/155,707.71 = 61,842.77/x
  3. Step 3: Cross multiply
    112,830.44x = 155,707.71 × 61,842.77
  4. Step 4: Simplify right side
    112,830.44x = 9,629,396,096.76
  5. Step 5: Solve for x
    x = 9,629,396,096.76/112,830.44
  6. Step 6: Final answer
    x = 85,343.96

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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.