Home / 127,143.11-190,708.40-47,196.65

Finding the Fourth Proportional to 127,143.11, 190,708.40 and 47,196.65

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Solution

The fourth proportional to 127,143.11, 190,708.40 and 47,196.65 is: 70,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,143.11 : 190,708.40 = 47,196.65 : x
  2. Step 2: Convert to fraction form
    127,143.11/190,708.40 = 47,196.65/x
  3. Step 3: Cross multiply
    127,143.11x = 190,708.40 × 47,196.65
  4. Step 4: Simplify right side
    127,143.11x = 9,000,796,417.33
  5. Step 5: Solve for x
    x = 9,000,796,417.33/127,143.11
  6. Step 6: Final answer
    x = 70,792.64

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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.