Home / 189,658.08-261,718.56-104,758.72

Finding the Fourth Proportional to 189,658.08, 261,718.56 and 104,758.72

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Solution

The fourth proportional to 189,658.08, 261,718.56 and 104,758.72 is: 144,561.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,658.08 : 261,718.56 = 104,758.72 : x
  2. Step 2: Convert to fraction form
    189,658.08/261,718.56 = 104,758.72/x
  3. Step 3: Cross multiply
    189,658.08x = 261,718.56 × 104,758.72
  4. Step 4: Simplify right side
    189,658.08x = 27,417,301,345.84
  5. Step 5: Solve for x
    x = 27,417,301,345.84/189,658.08
  6. Step 6: Final answer
    x = 144,561.74

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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.