Home / 112,725.36-155,559-68,013.36

Finding the Fourth Proportional to 112,725.36, 155,559 and 68,013.36

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Solution

The fourth proportional to 112,725.36, 155,559 and 68,013.36 is: 93,857.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,725.36 : 155,559 = 68,013.36 : x
  2. Step 2: Convert to fraction form
    112,725.36/155,559 = 68,013.36/x
  3. Step 3: Cross multiply
    112,725.36x = 155,559 × 68,013.36
  4. Step 4: Simplify right side
    112,725.36x = 10,580,090,268.24
  5. Step 5: Solve for x
    x = 10,580,090,268.24/112,725.36
  6. Step 6: Final answer
    x = 93,857.23

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1.5x scale

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.