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Finding the Fourth Proportional to 118,501.77, 163,532.99 and 64,786.79

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Solution

The fourth proportional to 118,501.77, 163,532.99 and 64,786.79 is: 89,406.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,501.77 : 163,532.99 = 64,786.79 : x
  2. Step 2: Convert to fraction form
    118,501.77/163,532.99 = 64,786.79/x
  3. Step 3: Cross multiply
    118,501.77x = 163,532.99 × 64,786.79
  4. Step 4: Simplify right side
    118,501.77x = 10,594,777,481.20
  5. Step 5: Solve for x
    x = 10,594,777,481.20/118,501.77
  6. Step 6: Final answer
    x = 89,406.07

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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.