Home / 158,349.06-218,523.51-90,375.21

Finding the Fourth Proportional to 158,349.06, 218,523.51 and 90,375.21

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Solution

The fourth proportional to 158,349.06, 218,523.51 and 90,375.21 is: 124,718.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,349.06 : 218,523.51 = 90,375.21 : x
  2. Step 2: Convert to fraction form
    158,349.06/218,523.51 = 90,375.21/x
  3. Step 3: Cross multiply
    158,349.06x = 218,523.51 × 90,375.21
  4. Step 4: Simplify right side
    158,349.06x = 19,749,108,106.19
  5. Step 5: Solve for x
    x = 19,749,108,106.19/158,349.06
  6. Step 6: Final answer
    x = 124,718.82

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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.