Home / 118,827.99-163,921.29-80,574.59

Finding the Fourth Proportional to 118,827.99, 163,921.29 and 80,574.59

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Solution

The fourth proportional to 118,827.99, 163,921.29 and 80,574.59 is: 111,151.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,827.99 : 163,921.29 = 80,574.59 : x
  2. Step 2: Convert to fraction form
    118,827.99/163,921.29 = 80,574.59/x
  3. Step 3: Cross multiply
    118,827.99x = 163,921.29 × 80,574.59
  4. Step 4: Simplify right side
    118,827.99x = 13,207,890,838.20
  5. Step 5: Solve for x
    x = 13,207,890,838.20/118,827.99
  6. Step 6: Final answer
    x = 111,151.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.