Home / 127,336.08-190,938.51-57,155.25

Finding the Fourth Proportional to 127,336.08, 190,938.51 and 57,155.25

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Solution

The fourth proportional to 127,336.08, 190,938.51 and 57,155.25 is: 85,703.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,336.08 : 190,938.51 = 57,155.25 : x
  2. Step 2: Convert to fraction form
    127,336.08/190,938.51 = 57,155.25/x
  3. Step 3: Cross multiply
    127,336.08x = 190,938.51 × 57,155.25
  4. Step 4: Simplify right side
    127,336.08x = 10,913,138,273.68
  5. Step 5: Solve for x
    x = 10,913,138,273.68/127,336.08
  6. Step 6: Final answer
    x = 85,703.43

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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.