Home / 147,811.55-221,709.11-68,981.13

Finding the Fourth Proportional to 147,811.55, 221,709.11 and 68,981.13

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Solution

The fourth proportional to 147,811.55, 221,709.11 and 68,981.13 is: 103,467.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,811.55 : 221,709.11 = 68,981.13 : x
  2. Step 2: Convert to fraction form
    147,811.55/221,709.11 = 68,981.13/x
  3. Step 3: Cross multiply
    147,811.55x = 221,709.11 × 68,981.13
  4. Step 4: Simplify right side
    147,811.55x = 15,293,744,594.19
  5. Step 5: Solve for x
    x = 15,293,744,594.19/147,811.55
  6. Step 6: Final answer
    x = 103,467.86

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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.