Home / 230,739.20-346,108.80-81,148.40

Finding the Fourth Proportional to 230,739.20, 346,108.80 and 81,148.40

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Solution

The fourth proportional to 230,739.20, 346,108.80 and 81,148.40 is: 121,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,739.20 : 346,108.80 = 81,148.40 : x
  2. Step 2: Convert to fraction form
    230,739.20/346,108.80 = 81,148.40/x
  3. Step 3: Cross multiply
    230,739.20x = 346,108.80 × 81,148.40
  4. Step 4: Simplify right side
    230,739.20x = 28,086,175,345.92
  5. Step 5: Solve for x
    x = 28,086,175,345.92/230,739.20
  6. Step 6: Final answer
    x = 121,722.60

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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.