Home / 195,631.12-293,530.92-105,655.78

Finding the Fourth Proportional to 195,631.12, 293,530.92 and 105,655.78

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Solution

The fourth proportional to 195,631.12, 293,530.92 and 105,655.78 is: 158,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,631.12 : 293,530.92 = 105,655.78 : x
  2. Step 2: Convert to fraction form
    195,631.12/293,530.92 = 105,655.78/x
  3. Step 3: Cross multiply
    195,631.12x = 293,530.92 × 105,655.78
  4. Step 4: Simplify right side
    195,631.12x = 31,013,238,306.72
  5. Step 5: Solve for x
    x = 31,013,238,306.72/195,631.12
  6. Step 6: Final answer
    x = 158,529.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.