Home / 147,379.10-221,047.11-72,479.14

Finding the Fourth Proportional to 147,379.10, 221,047.11 and 72,479.14

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Solution

The fourth proportional to 147,379.10, 221,047.11 and 72,479.14 is: 108,708.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,379.10 : 221,047.11 = 72,479.14 : x
  2. Step 2: Convert to fraction form
    147,379.10/221,047.11 = 72,479.14/x
  3. Step 3: Cross multiply
    147,379.10x = 221,047.11 × 72,479.14
  4. Step 4: Simplify right side
    147,379.10x = 16,021,303,879.67
  5. Step 5: Solve for x
    x = 16,021,303,879.67/147,379.10
  6. Step 6: Final answer
    x = 108,708.12

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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.