Home / 112,787.24-155,649.70-61,804.47

Finding the Fourth Proportional to 112,787.24, 155,649.70 and 61,804.47

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Solution

The fourth proportional to 112,787.24, 155,649.70 and 61,804.47 is: 85,291.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,787.24 : 155,649.70 = 61,804.47 : x
  2. Step 2: Convert to fraction form
    112,787.24/155,649.70 = 61,804.47/x
  3. Step 3: Cross multiply
    112,787.24x = 155,649.70 × 61,804.47
  4. Step 4: Simplify right side
    112,787.24x = 9,619,846,999.57
  5. Step 5: Solve for x
    x = 9,619,846,999.57/112,787.24
  6. Step 6: Final answer
    x = 85,291.98

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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.