Home / 112,689.36-155,511.72-62,388.36

Finding the Fourth Proportional to 112,689.36, 155,511.72 and 62,388.36

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Solution

The fourth proportional to 112,689.36, 155,511.72 and 62,388.36 is: 86,096.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,689.36 : 155,511.72 = 62,388.36 : x
  2. Step 2: Convert to fraction form
    112,689.36/155,511.72 = 62,388.36/x
  3. Step 3: Cross multiply
    112,689.36x = 155,511.72 × 62,388.36
  4. Step 4: Simplify right side
    112,689.36x = 9,702,121,171.58
  5. Step 5: Solve for x
    x = 9,702,121,171.58/112,689.36
  6. Step 6: Final answer
    x = 86,096.16

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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.