Home / 158,270.70-218,742.75-126,777.90

Finding the Fourth Proportional to 158,270.70, 218,742.75 and 126,777.90

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Solution

The fourth proportional to 158,270.70, 218,742.75 and 126,777.90 is: 175,217.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,270.70 : 218,742.75 = 126,777.90 : x
  2. Step 2: Convert to fraction form
    158,270.70/218,742.75 = 126,777.90/x
  3. Step 3: Cross multiply
    158,270.70x = 218,742.75 × 126,777.90
  4. Step 4: Simplify right side
    158,270.70x = 27,731,746,485.23
  5. Step 5: Solve for x
    x = 27,731,746,485.23/158,270.70
  6. Step 6: Final answer
    x = 175,217.18

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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.