Home / 122,408.20-183,612.30-100,538.20

Finding the Fourth Proportional to 122,408.20, 183,612.30 and 100,538.20

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Solution

The fourth proportional to 122,408.20, 183,612.30 and 100,538.20 is: 150,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,408.20 : 183,612.30 = 100,538.20 : x
  2. Step 2: Convert to fraction form
    122,408.20/183,612.30 = 100,538.20/x
  3. Step 3: Cross multiply
    122,408.20x = 183,612.30 × 100,538.20
  4. Step 4: Simplify right side
    122,408.20x = 18,460,050,139.86
  5. Step 5: Solve for x
    x = 18,460,050,139.86/122,408.20
  6. Step 6: Final answer
    x = 150,807.30

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1.5x scale

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.