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Finding the Fourth Proportional to 121,656.87, 182,491.38 and 46,750.77

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Solution

The fourth proportional to 121,656.87, 182,491.38 and 46,750.77 is: 70,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,656.87 : 182,491.38 = 46,750.77 : x
  2. Step 2: Convert to fraction form
    121,656.87/182,491.38 = 46,750.77/x
  3. Step 3: Cross multiply
    121,656.87x = 182,491.38 × 46,750.77
  4. Step 4: Simplify right side
    121,656.87x = 8,531,612,533.36
  5. Step 5: Solve for x
    x = 8,531,612,533.36/121,656.87
  6. Step 6: Final answer
    x = 70,128.49

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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.