Home / 218,569.52-301,594.56-121,772.72

Finding the Fourth Proportional to 218,569.52, 301,594.56 and 121,772.72

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Solution

The fourth proportional to 218,569.52, 301,594.56 and 121,772.72 is: 168,028.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,569.52 : 301,594.56 = 121,772.72 : x
  2. Step 2: Convert to fraction form
    218,569.52/301,594.56 = 121,772.72/x
  3. Step 3: Cross multiply
    218,569.52x = 301,594.56 × 121,772.72
  4. Step 4: Simplify right side
    218,569.52x = 36,725,989,908.40
  5. Step 5: Solve for x
    x = 36,725,989,908.40/218,569.52
  6. Step 6: Final answer
    x = 168,028.87

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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.