Home / 127,178.94-175,507.03-76,221.25

Finding the Fourth Proportional to 127,178.94, 175,507.03 and 76,221.25

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Solution

The fourth proportional to 127,178.94, 175,507.03 and 76,221.25 is: 105,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,178.94 : 175,507.03 = 76,221.25 : x
  2. Step 2: Convert to fraction form
    127,178.94/175,507.03 = 76,221.25/x
  3. Step 3: Cross multiply
    127,178.94x = 175,507.03 × 76,221.25
  4. Step 4: Simplify right side
    127,178.94x = 13,377,365,210.39
  5. Step 5: Solve for x
    x = 13,377,365,210.39/127,178.94
  6. Step 6: Final answer
    x = 105,185.38

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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.