Home / 73,143.20-109,714.80-61,333.40

Finding the Fourth Proportional to 73,143.20, 109,714.80 and 61,333.40

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Solution

The fourth proportional to 73,143.20, 109,714.80 and 61,333.40 is: 92,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,143.20 : 109,714.80 = 61,333.40 : x
  2. Step 2: Convert to fraction form
    73,143.20/109,714.80 = 61,333.40/x
  3. Step 3: Cross multiply
    73,143.20x = 109,714.80 × 61,333.40
  4. Step 4: Simplify right side
    73,143.20x = 6,729,181,714.32
  5. Step 5: Solve for x
    x = 6,729,181,714.32/73,143.20
  6. Step 6: Final answer
    x = 92,000.10

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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.