Home / 205,527.24-307,515.66-121,333.20

Finding the Fourth Proportional to 205,527.24, 307,515.66 and 121,333.20

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Solution

The fourth proportional to 205,527.24, 307,515.66 and 121,333.20 is: 181,542.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,527.24 : 307,515.66 = 121,333.20 : x
  2. Step 2: Convert to fraction form
    205,527.24/307,515.66 = 121,333.20/x
  3. Step 3: Cross multiply
    205,527.24x = 307,515.66 × 121,333.20
  4. Step 4: Simplify right side
    205,527.24x = 37,311,859,077.91
  5. Step 5: Solve for x
    x = 37,311,859,077.91/205,527.24
  6. Step 6: Final answer
    x = 181,542.16

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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.