Home / 112,828.44-155,704.95-61,840.77

Finding the Fourth Proportional to 112,828.44, 155,704.95 and 61,840.77

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Solution

The fourth proportional to 112,828.44, 155,704.95 and 61,840.77 is: 85,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,828.44 : 155,704.95 = 61,840.77 : x
  2. Step 2: Convert to fraction form
    112,828.44/155,704.95 = 61,840.77/x
  3. Step 3: Cross multiply
    112,828.44x = 155,704.95 × 61,840.77
  4. Step 4: Simplify right side
    112,828.44x = 9,628,914,000.81
  5. Step 5: Solve for x
    x = 9,628,914,000.81/112,828.44
  6. Step 6: Final answer
    x = 85,341.20

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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.