Home / 137,020.44-189,090.54-76,592.28

Finding the Fourth Proportional to 137,020.44, 189,090.54 and 76,592.28

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Solution

The fourth proportional to 137,020.44, 189,090.54 and 76,592.28 is: 105,698.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,020.44 : 189,090.54 = 76,592.28 : x
  2. Step 2: Convert to fraction form
    137,020.44/189,090.54 = 76,592.28/x
  3. Step 3: Cross multiply
    137,020.44x = 189,090.54 × 76,592.28
  4. Step 4: Simplify right side
    137,020.44x = 14,482,875,585.03
  5. Step 5: Solve for x
    x = 14,482,875,585.03/137,020.44
  6. Step 6: Final answer
    x = 105,698.65

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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.