Home / 191,243.57-263,971.71-127,581.21

Finding the Fourth Proportional to 191,243.57, 263,971.71 and 127,581.21

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Solution

The fourth proportional to 191,243.57, 263,971.71 and 127,581.21 is: 176,099.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,243.57 : 263,971.71 = 127,581.21 : x
  2. Step 2: Convert to fraction form
    191,243.57/263,971.71 = 127,581.21/x
  3. Step 3: Cross multiply
    191,243.57x = 263,971.71 × 127,581.21
  4. Step 4: Simplify right side
    191,243.57x = 33,677,830,167.57
  5. Step 5: Solve for x
    x = 33,677,830,167.57/191,243.57
  6. Step 6: Final answer
    x = 176,099.15

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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.