Home / 154,907.64-213,793.81-86,928.62

Finding the Fourth Proportional to 154,907.64, 213,793.81 and 86,928.62

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Solution

The fourth proportional to 154,907.64, 213,793.81 and 86,928.62 is: 119,973.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,907.64 : 213,793.81 = 86,928.62 : x
  2. Step 2: Convert to fraction form
    154,907.64/213,793.81 = 86,928.62/x
  3. Step 3: Cross multiply
    154,907.64x = 213,793.81 × 86,928.62
  4. Step 4: Simplify right side
    154,907.64x = 18,584,799,364.23
  5. Step 5: Solve for x
    x = 18,584,799,364.23/154,907.64
  6. Step 6: Final answer
    x = 119,973.42

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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.