Home / 158,226.21-218,308.98-90,218.38

Finding the Fourth Proportional to 158,226.21, 218,308.98 and 90,218.38

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Solution

The fourth proportional to 158,226.21, 218,308.98 and 90,218.38 is: 124,476.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,226.21 : 218,308.98 = 90,218.38 : x
  2. Step 2: Convert to fraction form
    158,226.21/218,308.98 = 90,218.38/x
  3. Step 3: Cross multiply
    158,226.21x = 218,308.98 × 90,218.38
  4. Step 4: Simplify right side
    158,226.21x = 19,695,482,307.60
  5. Step 5: Solve for x
    x = 19,695,482,307.60/158,226.21
  6. Step 6: Final answer
    x = 124,476.74

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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.