Home / 118,812.28-163,955.94-71,037.40

Finding the Fourth Proportional to 118,812.28, 163,955.94 and 71,037.40

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Solution

The fourth proportional to 118,812.28, 163,955.94 and 71,037.40 is: 98,028.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,812.28 : 163,955.94 = 71,037.40 : x
  2. Step 2: Convert to fraction form
    118,812.28/163,955.94 = 71,037.40/x
  3. Step 3: Cross multiply
    118,812.28x = 163,955.94 × 71,037.40
  4. Step 4: Simplify right side
    118,812.28x = 11,647,003,692.16
  5. Step 5: Solve for x
    x = 11,647,003,692.16/118,812.28
  6. Step 6: Final answer
    x = 98,028.62

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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.