Home / 154,268.30-212,891.82-90,607.16

Finding the Fourth Proportional to 154,268.30, 212,891.82 and 90,607.16

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Solution

The fourth proportional to 154,268.30, 212,891.82 and 90,607.16 is: 125,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,268.30 : 212,891.82 = 90,607.16 : x
  2. Step 2: Convert to fraction form
    154,268.30/212,891.82 = 90,607.16/x
  3. Step 3: Cross multiply
    154,268.30x = 212,891.82 × 90,607.16
  4. Step 4: Simplify right side
    154,268.30x = 19,289,523,197.43
  5. Step 5: Solve for x
    x = 19,289,523,197.43/154,268.30
  6. Step 6: Final answer
    x = 125,038.80

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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.