Home / 127,971.53-191,875.28-53,143.33

Finding the Fourth Proportional to 127,971.53, 191,875.28 and 53,143.33

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Solution

The fourth proportional to 127,971.53, 191,875.28 and 53,143.33 is: 79,680.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,971.53 : 191,875.28 = 53,143.33 : x
  2. Step 2: Convert to fraction form
    127,971.53/191,875.28 = 53,143.33/x
  3. Step 3: Cross multiply
    127,971.53x = 191,875.28 × 53,143.33
  4. Step 4: Simplify right side
    127,971.53x = 10,196,890,231.65
  5. Step 5: Solve for x
    x = 10,196,890,231.65/127,971.53
  6. Step 6: Final answer
    x = 79,680.93

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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.