Home / 158,023.20-218,092.32-90,064.56

Finding the Fourth Proportional to 158,023.20, 218,092.32 and 90,064.56

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Solution

The fourth proportional to 158,023.20, 218,092.32 and 90,064.56 is: 124,300.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,023.20 : 218,092.32 = 90,064.56 : x
  2. Step 2: Convert to fraction form
    158,023.20/218,092.32 = 90,064.56/x
  3. Step 3: Cross multiply
    158,023.20x = 218,092.32 × 90,064.56
  4. Step 4: Simplify right side
    158,023.20x = 19,642,388,840.18
  5. Step 5: Solve for x
    x = 19,642,388,840.18/158,023.20
  6. Step 6: Final answer
    x = 124,300.66

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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.