Home / 158,173.38-218,284.74-90,200.61

Finding the Fourth Proportional to 158,173.38, 218,284.74 and 90,200.61

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Solution

The fourth proportional to 158,173.38, 218,284.74 and 90,200.61 is: 124,479.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,173.38 : 218,284.74 = 90,200.61 : x
  2. Step 2: Convert to fraction form
    158,173.38/218,284.74 = 90,200.61/x
  3. Step 3: Cross multiply
    158,173.38x = 218,284.74 × 90,200.61
  4. Step 4: Simplify right side
    158,173.38x = 19,689,416,701.69
  5. Step 5: Solve for x
    x = 19,689,416,701.69/158,173.38
  6. Step 6: Final answer
    x = 124,479.96

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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.