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Finding the Fourth Proportional to 118,305.77, 163,280.71 and 75,240.37

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Solution

The fourth proportional to 118,305.77, 163,280.71 and 75,240.37 is: 103,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,305.77 : 163,280.71 = 75,240.37 : x
  2. Step 2: Convert to fraction form
    118,305.77/163,280.71 = 75,240.37/x
  3. Step 3: Cross multiply
    118,305.77x = 163,280.71 × 75,240.37
  4. Step 4: Simplify right side
    118,305.77x = 12,285,301,034.26
  5. Step 5: Solve for x
    x = 12,285,301,034.26/118,305.77
  6. Step 6: Final answer
    x = 103,843.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.