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Finding the Fourth Proportional to 118,199.81, 163,112.50 and 64,484.81

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Solution

The fourth proportional to 118,199.81, 163,112.50 and 64,484.81 is: 88,987.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,199.81 : 163,112.50 = 64,484.81 : x
  2. Step 2: Convert to fraction form
    118,199.81/163,112.50 = 64,484.81/x
  3. Step 3: Cross multiply
    118,199.81x = 163,112.50 × 64,484.81
  4. Step 4: Simplify right side
    118,199.81x = 10,518,278,571.13
  5. Step 5: Solve for x
    x = 10,518,278,571.13/118,199.81
  6. Step 6: Final answer
    x = 88,987.27

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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.