Home / 122,612.92-183,914.28-42,669.20

Finding the Fourth Proportional to 122,612.92, 183,914.28 and 42,669.20

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Solution

The fourth proportional to 122,612.92, 183,914.28 and 42,669.20 is: 64,002.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,612.92 : 183,914.28 = 42,669.20 : x
  2. Step 2: Convert to fraction form
    122,612.92/183,914.28 = 42,669.20/x
  3. Step 3: Cross multiply
    122,612.92x = 183,914.28 × 42,669.20
  4. Step 4: Simplify right side
    122,612.92x = 7,847,475,655.96
  5. Step 5: Solve for x
    x = 7,847,475,655.96/122,612.92
  6. Step 6: Final answer
    x = 64,002.03

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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.