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Finding the Fourth Proportional to 122,105.61, 183,210.35 and 47,278.32

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Solution

The fourth proportional to 122,105.61, 183,210.35 and 47,278.32 is: 70,937.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,105.61 : 183,210.35 = 47,278.32 : x
  2. Step 2: Convert to fraction form
    122,105.61/183,210.35 = 47,278.32/x
  3. Step 3: Cross multiply
    122,105.61x = 183,210.35 × 47,278.32
  4. Step 4: Simplify right side
    122,105.61x = 8,661,877,554.61
  5. Step 5: Solve for x
    x = 8,661,877,554.61/122,105.61
  6. Step 6: Final answer
    x = 70,937.59

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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.