Home / 121,212.72-181,838.32-36,953.58

Finding the Fourth Proportional to 121,212.72, 181,838.32 and 36,953.58

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Solution

The fourth proportional to 121,212.72, 181,838.32 and 36,953.58 is: 55,436.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212.72 : 181,838.32 = 36,953.58 : x
  2. Step 2: Convert to fraction form
    121,212.72/181,838.32 = 36,953.58/x
  3. Step 3: Cross multiply
    121,212.72x = 181,838.32 × 36,953.58
  4. Step 4: Simplify right side
    121,212.72x = 6,719,577,494.70
  5. Step 5: Solve for x
    x = 6,719,577,494.70/121,212.72
  6. Step 6: Final answer
    x = 55,436.24

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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.