Home / 127,146.16-190,781.21-52,288.80

Finding the Fourth Proportional to 127,146.16, 190,781.21 and 52,288.80

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Solution

The fourth proportional to 127,146.16, 190,781.21 and 52,288.80 is: 78,458.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,146.16 : 190,781.21 = 52,288.80 : x
  2. Step 2: Convert to fraction form
    127,146.16/190,781.21 = 52,288.80/x
  3. Step 3: Cross multiply
    127,146.16x = 190,781.21 × 52,288.80
  4. Step 4: Simplify right side
    127,146.16x = 9,975,720,533.45
  5. Step 5: Solve for x
    x = 9,975,720,533.45/127,146.16
  6. Step 6: Final answer
    x = 78,458.69

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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.