Home / 158,212.68-218,279.18-90,180.58

Finding the Fourth Proportional to 158,212.68, 218,279.18 and 90,180.58

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Solution

The fourth proportional to 158,212.68, 218,279.18 and 90,180.58 is: 124,418.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,212.68 : 218,279.18 = 90,180.58 : x
  2. Step 2: Convert to fraction form
    158,212.68/218,279.18 = 90,180.58/x
  3. Step 3: Cross multiply
    158,212.68x = 218,279.18 × 90,180.58
  4. Step 4: Simplify right side
    158,212.68x = 19,684,543,054.32
  5. Step 5: Solve for x
    x = 19,684,543,054.32/158,212.68
  6. Step 6: Final answer
    x = 124,418.24

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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.