Home / 154,015.44-212,543.08-90,354.32

Finding the Fourth Proportional to 154,015.44, 212,543.08 and 90,354.32

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Solution

The fourth proportional to 154,015.44, 212,543.08 and 90,354.32 is: 124,690.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,015.44 : 212,543.08 = 90,354.32 : x
  2. Step 2: Convert to fraction form
    154,015.44/212,543.08 = 90,354.32/x
  3. Step 3: Cross multiply
    154,015.44x = 212,543.08 × 90,354.32
  4. Step 4: Simplify right side
    154,015.44x = 19,204,185,464.11
  5. Step 5: Solve for x
    x = 19,204,185,464.11/154,015.44
  6. Step 6: Final answer
    x = 124,690.00

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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.