Home / 127,916.51-191,875.22-39,169.65

Finding the Fourth Proportional to 127,916.51, 191,875.22 and 39,169.65

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Solution

The fourth proportional to 127,916.51, 191,875.22 and 39,169.65 is: 58,754.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,916.51 : 191,875.22 = 39,169.65 : x
  2. Step 2: Convert to fraction form
    127,916.51/191,875.22 = 39,169.65/x
  3. Step 3: Cross multiply
    127,916.51x = 191,875.22 × 39,169.65
  4. Step 4: Simplify right side
    127,916.51x = 7,515,685,309.00
  5. Step 5: Solve for x
    x = 7,515,685,309.00/127,916.51
  6. Step 6: Final answer
    x = 58,754.62

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1.5x scale

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.