Home / 230,698.20-346,047.30-81,107.40

Finding the Fourth Proportional to 230,698.20, 346,047.30 and 81,107.40

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Solution

The fourth proportional to 230,698.20, 346,047.30 and 81,107.40 is: 121,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,698.20 : 346,047.30 = 81,107.40 : x
  2. Step 2: Convert to fraction form
    230,698.20/346,047.30 = 81,107.40/x
  3. Step 3: Cross multiply
    230,698.20x = 346,047.30 × 81,107.40
  4. Step 4: Simplify right side
    230,698.20x = 28,066,996,780.02
  5. Step 5: Solve for x
    x = 28,066,996,780.02/230,698.20
  6. Step 6: Final answer
    x = 121,661.10

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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.