Home / 217,043.28-299,525.04-121,569.39

Finding the Fourth Proportional to 217,043.28, 299,525.04 and 121,569.39

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Solution

The fourth proportional to 217,043.28, 299,525.04 and 121,569.39 is: 167,768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,043.28 : 299,525.04 = 121,569.39 : x
  2. Step 2: Convert to fraction form
    217,043.28/299,525.04 = 121,569.39/x
  3. Step 3: Cross multiply
    217,043.28x = 299,525.04 × 121,569.39
  4. Step 4: Simplify right side
    217,043.28x = 36,413,076,402.53
  5. Step 5: Solve for x
    x = 36,413,076,402.53/217,043.28
  6. Step 6: Final answer
    x = 167,768.73

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1.5x scale

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.