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Finding the Fourth Proportional to 122,178.60, 183,267.90 and 101,511.45

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Solution

The fourth proportional to 122,178.60, 183,267.90 and 101,511.45 is: 152,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,178.60 : 183,267.90 = 101,511.45 : x
  2. Step 2: Convert to fraction form
    122,178.60/183,267.90 = 101,511.45/x
  3. Step 3: Cross multiply
    122,178.60x = 183,267.90 × 101,511.45
  4. Step 4: Simplify right side
    122,178.60x = 18,603,790,267.46
  5. Step 5: Solve for x
    x = 18,603,790,267.46/122,178.60
  6. Step 6: Final answer
    x = 152,267.18

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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.