Home / 152,981.70-229,409.39-66,433.20

Finding the Fourth Proportional to 152,981.70, 229,409.39 and 66,433.20

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Solution

The fourth proportional to 152,981.70, 229,409.39 and 66,433.20 is: 99,622.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,981.70 : 229,409.39 = 66,433.20 : x
  2. Step 2: Convert to fraction form
    152,981.70/229,409.39 = 66,433.20/x
  3. Step 3: Cross multiply
    152,981.70x = 229,409.39 × 66,433.20
  4. Step 4: Simplify right side
    152,981.70x = 15,240,399,555.58
  5. Step 5: Solve for x
    x = 15,240,399,555.58/152,981.70
  6. Step 6: Final answer
    x = 99,622.37

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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.