Home / 189,564.72-261,598.84-108,988.35

Finding the Fourth Proportional to 189,564.72, 261,598.84 and 108,988.35

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Solution

The fourth proportional to 189,564.72, 261,598.84 and 108,988.35 is: 150,403.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,564.72 : 261,598.84 = 108,988.35 : x
  2. Step 2: Convert to fraction form
    189,564.72/261,598.84 = 108,988.35/x
  3. Step 3: Cross multiply
    189,564.72x = 261,598.84 × 108,988.35
  4. Step 4: Simplify right side
    189,564.72x = 28,511,225,933.51
  5. Step 5: Solve for x
    x = 28,511,225,933.51/189,564.72
  6. Step 6: Final answer
    x = 150,403.65

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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.