Home / 138,164.04-190,665.03-76,909.26

Finding the Fourth Proportional to 138,164.04, 190,665.03 and 76,909.26

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Solution

The fourth proportional to 138,164.04, 190,665.03 and 76,909.26 is: 106,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,164.04 : 190,665.03 = 76,909.26 : x
  2. Step 2: Convert to fraction form
    138,164.04/190,665.03 = 76,909.26/x
  3. Step 3: Cross multiply
    138,164.04x = 190,665.03 × 76,909.26
  4. Step 4: Simplify right side
    138,164.04x = 14,663,906,220.97
  5. Step 5: Solve for x
    x = 14,663,906,220.97/138,164.04
  6. Step 6: Final answer
    x = 106,134.03

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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.