Home / 189,758.72-261,851.28-104,875.76

Finding the Fourth Proportional to 189,758.72, 261,851.28 and 104,875.76

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Solution

The fourth proportional to 189,758.72, 261,851.28 and 104,875.76 is: 144,719.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,758.72 : 261,851.28 = 104,875.76 : x
  2. Step 2: Convert to fraction form
    189,758.72/261,851.28 = 104,875.76/x
  3. Step 3: Cross multiply
    189,758.72x = 261,851.28 × 104,875.76
  4. Step 4: Simplify right side
    189,758.72x = 27,461,851,996.97
  5. Step 5: Solve for x
    x = 27,461,851,996.97/189,758.72
  6. Step 6: Final answer
    x = 144,719.84

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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.