Home / 138,017.20-190,608.32-95,108.26

Finding the Fourth Proportional to 138,017.20, 190,608.32 and 95,108.26

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Solution

The fourth proportional to 138,017.20, 190,608.32 and 95,108.26 is: 131,349.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,017.20 : 190,608.32 = 95,108.26 : x
  2. Step 2: Convert to fraction form
    138,017.20/190,608.32 = 95,108.26/x
  3. Step 3: Cross multiply
    138,017.20x = 190,608.32 × 95,108.26
  4. Step 4: Simplify right side
    138,017.20x = 18,128,425,656.72
  5. Step 5: Solve for x
    x = 18,128,425,656.72/138,017.20
  6. Step 6: Final answer
    x = 131,349.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.