Home / 192,795.40-265,697.04-138,988.72

Finding the Fourth Proportional to 192,795.40, 265,697.04 and 138,988.72

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Solution

The fourth proportional to 192,795.40, 265,697.04 and 138,988.72 is: 191,544.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,795.40 : 265,697.04 = 138,988.72 : x
  2. Step 2: Convert to fraction form
    192,795.40/265,697.04 = 138,988.72/x
  3. Step 3: Cross multiply
    192,795.40x = 265,697.04 × 138,988.72
  4. Step 4: Simplify right side
    192,795.40x = 36,928,891,497.39
  5. Step 5: Solve for x
    x = 36,928,891,497.39/192,795.40
  6. Step 6: Final answer
    x = 191,544.46

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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.