Home / 154,262.76-212,883.08-86,280.89

Finding the Fourth Proportional to 154,262.76, 212,883.08 and 86,280.89

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Solution

The fourth proportional to 154,262.76, 212,883.08 and 86,280.89 is: 119,067.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,262.76 : 212,883.08 = 86,280.89 : x
  2. Step 2: Convert to fraction form
    154,262.76/212,883.08 = 86,280.89/x
  3. Step 3: Cross multiply
    154,262.76x = 212,883.08 × 86,280.89
  4. Step 4: Simplify right side
    154,262.76x = 18,367,740,112.52
  5. Step 5: Solve for x
    x = 18,367,740,112.52/154,262.76
  6. Step 6: Final answer
    x = 119,067.88

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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.