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Finding the Fourth Proportional to 121,618.94, 182,511.46 and 42,733.17

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Solution

The fourth proportional to 121,618.94, 182,511.46 and 42,733.17 is: 64,128.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,618.94 : 182,511.46 = 42,733.17 : x
  2. Step 2: Convert to fraction form
    121,618.94/182,511.46 = 42,733.17/x
  3. Step 3: Cross multiply
    121,618.94x = 182,511.46 × 42,733.17
  4. Step 4: Simplify right side
    121,618.94x = 7,799,293,300.54
  5. Step 5: Solve for x
    x = 7,799,293,300.54/121,618.94
  6. Step 6: Final answer
    x = 64,128.94

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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.