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Finding the Fourth Proportional to 131,854.68, 197,888.07 and 68,693.67

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Solution

The fourth proportional to 131,854.68, 197,888.07 and 68,693.67 is: 103,095.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,854.68 : 197,888.07 = 68,693.67 : x
  2. Step 2: Convert to fraction form
    131,854.68/197,888.07 = 68,693.67/x
  3. Step 3: Cross multiply
    131,854.68x = 197,888.07 × 68,693.67
  4. Step 4: Simplify right side
    131,854.68x = 13,593,657,777.52
  5. Step 5: Solve for x
    x = 13,593,657,777.52/131,854.68
  6. Step 6: Final answer
    x = 103,095.75

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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.