Home / 189,525.92-261,547.72-104,642.78

Finding the Fourth Proportional to 189,525.92, 261,547.72 and 104,642.78

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Solution

The fourth proportional to 189,525.92, 261,547.72 and 104,642.78 is: 144,408.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,525.92 : 261,547.72 = 104,642.78 : x
  2. Step 2: Convert to fraction form
    189,525.92/261,547.72 = 104,642.78/x
  3. Step 3: Cross multiply
    189,525.92x = 261,547.72 × 104,642.78
  4. Step 4: Simplify right side
    189,525.92x = 27,369,078,954.12
  5. Step 5: Solve for x
    x = 27,369,078,954.12/189,525.92
  6. Step 6: Final answer
    x = 144,408.11

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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.