Home / 126,578.09-189,701.06-93,141.60

Finding the Fourth Proportional to 126,578.09, 189,701.06 and 93,141.60

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Solution

The fourth proportional to 126,578.09, 189,701.06 and 93,141.60 is: 139,590.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,578.09 : 189,701.06 = 93,141.60 : x
  2. Step 2: Convert to fraction form
    126,578.09/189,701.06 = 93,141.60/x
  3. Step 3: Cross multiply
    126,578.09x = 189,701.06 × 93,141.60
  4. Step 4: Simplify right side
    126,578.09x = 17,669,059,858.89
  5. Step 5: Solve for x
    x = 17,669,059,858.89/126,578.09
  6. Step 6: Final answer
    x = 139,590.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.