Home / 215,276.43-322,739.65-75,133.47

Finding the Fourth Proportional to 215,276.43, 322,739.65 and 75,133.47

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Solution

The fourth proportional to 215,276.43, 322,739.65 and 75,133.47 is: 112,639.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,276.43 : 322,739.65 = 75,133.47 : x
  2. Step 2: Convert to fraction form
    215,276.43/322,739.65 = 75,133.47/x
  3. Step 3: Cross multiply
    215,276.43x = 322,739.65 × 75,133.47
  4. Step 4: Simplify right side
    215,276.43x = 24,248,549,811.09
  5. Step 5: Solve for x
    x = 24,248,549,811.09/215,276.43
  6. Step 6: Final answer
    x = 112,639.13

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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.