Home / 131,019.90-196,528.02-74,739.88

Finding the Fourth Proportional to 131,019.90, 196,528.02 and 74,739.88

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Solution

The fourth proportional to 131,019.90, 196,528.02 and 74,739.88 is: 112,108.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,019.90 : 196,528.02 = 74,739.88 : x
  2. Step 2: Convert to fraction form
    131,019.90/196,528.02 = 74,739.88/x
  3. Step 3: Cross multiply
    131,019.90x = 196,528.02 × 74,739.88
  4. Step 4: Simplify right side
    131,019.90x = 14,688,480,631.44
  5. Step 5: Solve for x
    x = 14,688,480,631.44/131,019.90
  6. Step 6: Final answer
    x = 112,108.78

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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.