Home / 137,975.88-206,926.74-38,112.60

Finding the Fourth Proportional to 137,975.88, 206,926.74 and 38,112.60

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Solution

The fourth proportional to 137,975.88, 206,926.74 and 38,112.60 is: 57,158.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,975.88 : 206,926.74 = 38,112.60 : x
  2. Step 2: Convert to fraction form
    137,975.88/206,926.74 = 38,112.60/x
  3. Step 3: Cross multiply
    137,975.88x = 206,926.74 × 38,112.60
  4. Step 4: Simplify right side
    137,975.88x = 7,886,516,070.92
  5. Step 5: Solve for x
    x = 7,886,516,070.92/137,975.88
  6. Step 6: Final answer
    x = 57,158.66

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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.