Home / 112,851.14-155,730.75-65,103.26

Finding the Fourth Proportional to 112,851.14, 155,730.75 and 65,103.26

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Solution

The fourth proportional to 112,851.14, 155,730.75 and 65,103.26 is: 89,840.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,851.14 : 155,730.75 = 65,103.26 : x
  2. Step 2: Convert to fraction form
    112,851.14/155,730.75 = 65,103.26/x
  3. Step 3: Cross multiply
    112,851.14x = 155,730.75 × 65,103.26
  4. Step 4: Simplify right side
    112,851.14x = 10,138,579,507.25
  5. Step 5: Solve for x
    x = 10,138,579,507.25/112,851.14
  6. Step 6: Final answer
    x = 89,840.29

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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.