Home / 158,086.80-218,165.40-90,114.03

Finding the Fourth Proportional to 158,086.80, 218,165.40 and 90,114.03

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Solution

The fourth proportional to 158,086.80, 218,165.40 and 90,114.03 is: 124,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,086.80 : 218,165.40 = 90,114.03 : x
  2. Step 2: Convert to fraction form
    158,086.80/218,165.40 = 90,114.03/x
  3. Step 3: Cross multiply
    158,086.80x = 218,165.40 × 90,114.03
  4. Step 4: Simplify right side
    158,086.80x = 19,659,763,400.56
  5. Step 5: Solve for x
    x = 19,659,763,400.56/158,086.80
  6. Step 6: Final answer
    x = 124,360.56

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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.