Home / 112,939.14-155,829.88-67,599.90

Finding the Fourth Proportional to 112,939.14, 155,829.88 and 67,599.90

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Solution

The fourth proportional to 112,939.14, 155,829.88 and 67,599.90 is: 93,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,939.14 : 155,829.88 = 67,599.90 : x
  2. Step 2: Convert to fraction form
    112,939.14/155,829.88 = 67,599.90/x
  3. Step 3: Cross multiply
    112,939.14x = 155,829.88 × 67,599.90
  4. Step 4: Simplify right side
    112,939.14x = 10,534,084,389.51
  5. Step 5: Solve for x
    x = 10,534,084,389.51/112,939.14
  6. Step 6: Final answer
    x = 93,272.22

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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.