Home / 154,092.48-212,631.78-105,735.88

Finding the Fourth Proportional to 154,092.48, 212,631.78 and 105,735.88

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Solution

The fourth proportional to 154,092.48, 212,631.78 and 105,735.88 is: 145,904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,092.48 : 212,631.78 = 105,735.88 : x
  2. Step 2: Convert to fraction form
    154,092.48/212,631.78 = 105,735.88/x
  3. Step 3: Cross multiply
    154,092.48x = 212,631.78 × 105,735.88
  4. Step 4: Simplify right side
    154,092.48x = 22,482,809,036.57
  5. Step 5: Solve for x
    x = 22,482,809,036.57/154,092.48
  6. Step 6: Final answer
    x = 145,904.65

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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.