Home / 154,066.39-212,592.08-90,380.95

Finding the Fourth Proportional to 154,066.39, 212,592.08 and 90,380.95

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Solution

The fourth proportional to 154,066.39, 212,592.08 and 90,380.95 is: 124,714.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,066.39 : 212,592.08 = 90,380.95 : x
  2. Step 2: Convert to fraction form
    154,066.39/212,592.08 = 90,380.95/x
  3. Step 3: Cross multiply
    154,066.39x = 212,592.08 × 90,380.95
  4. Step 4: Simplify right side
    154,066.39x = 19,214,274,152.88
  5. Step 5: Solve for x
    x = 19,214,274,152.88/154,066.39
  6. Step 6: Final answer
    x = 124,714.25

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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.