Home / 402,669.21-603,989.90-103,152.73

Finding the Fourth Proportional to 402,669.21, 603,989.90 and 103,152.73

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Solution

The fourth proportional to 402,669.21, 603,989.90 and 103,152.73 is: 154,725.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,669.21 : 603,989.90 = 103,152.73 : x
  2. Step 2: Convert to fraction form
    402,669.21/603,989.90 = 103,152.73/x
  3. Step 3: Cross multiply
    402,669.21x = 603,989.90 × 103,152.73
  4. Step 4: Simplify right side
    402,669.21x = 62,303,207,077.43
  5. Step 5: Solve for x
    x = 62,303,207,077.43/402,669.21
  6. Step 6: Final answer
    x = 154,725.53

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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.