Home / 212,841.06-319,261.58-72,600.90

Finding the Fourth Proportional to 212,841.06, 319,261.58 and 72,600.90

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Solution

The fourth proportional to 212,841.06, 319,261.58 and 72,600.90 is: 108,901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,841.06 : 319,261.58 = 72,600.90 : x
  2. Step 2: Convert to fraction form
    212,841.06/319,261.58 = 72,600.90/x
  3. Step 3: Cross multiply
    212,841.06x = 319,261.58 × 72,600.90
  4. Step 4: Simplify right side
    212,841.06x = 23,178,678,043.42
  5. Step 5: Solve for x
    x = 23,178,678,043.42/212,841.06
  6. Step 6: Final answer
    x = 108,901.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.