Home / 316,789.45-475,126.77-127,242.16

Finding the Fourth Proportional to 316,789.45, 475,126.77 and 127,242.16

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Solution

The fourth proportional to 316,789.45, 475,126.77 and 127,242.16 is: 190,840.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,789.45 : 475,126.77 = 127,242.16 : x
  2. Step 2: Convert to fraction form
    316,789.45/475,126.77 = 127,242.16/x
  3. Step 3: Cross multiply
    316,789.45x = 475,126.77 × 127,242.16
  4. Step 4: Simplify right side
    316,789.45x = 60,456,155,062.23
  5. Step 5: Solve for x
    x = 60,456,155,062.23/316,789.45
  6. Step 6: Final answer
    x = 190,840.18

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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.