Home / 136,627.36-203,582.82-121,721.74

Finding the Fourth Proportional to 136,627.36, 203,582.82 and 121,721.74

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Solution

The fourth proportional to 136,627.36, 203,582.82 and 121,721.74 is: 181,372.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,627.36 : 203,582.82 = 121,721.74 : x
  2. Step 2: Convert to fraction form
    136,627.36/203,582.82 = 121,721.74/x
  3. Step 3: Cross multiply
    136,627.36x = 203,582.82 × 121,721.74
  4. Step 4: Simplify right side
    136,627.36x = 24,780,454,347.32
  5. Step 5: Solve for x
    x = 24,780,454,347.32/136,627.36
  6. Step 6: Final answer
    x = 181,372.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.