Home / 118,268.87-163,211.61-64,555.13

Finding the Fourth Proportional to 118,268.87, 163,211.61 and 64,555.13

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Solution

The fourth proportional to 118,268.87, 163,211.61 and 64,555.13 is: 89,086.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,268.87 : 163,211.61 = 64,555.13 : x
  2. Step 2: Convert to fraction form
    118,268.87/163,211.61 = 64,555.13/x
  3. Step 3: Cross multiply
    118,268.87x = 163,211.61 × 64,555.13
  4. Step 4: Simplify right side
    118,268.87x = 10,536,145,885.00
  5. Step 5: Solve for x
    x = 10,536,145,885.00/118,268.87
  6. Step 6: Final answer
    x = 89,086.39

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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.