Home / 118,355.02-163,329.09-64,640.05

Finding the Fourth Proportional to 118,355.02, 163,329.09 and 64,640.05

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Solution

The fourth proportional to 118,355.02, 163,329.09 and 64,640.05 is: 89,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,355.02 : 163,329.09 = 64,640.05 : x
  2. Step 2: Convert to fraction form
    118,355.02/163,329.09 = 64,640.05/x
  3. Step 3: Cross multiply
    118,355.02x = 163,329.09 × 64,640.05
  4. Step 4: Simplify right side
    118,355.02x = 10,557,600,544.05
  5. Step 5: Solve for x
    x = 10,557,600,544.05/118,355.02
  6. Step 6: Final answer
    x = 89,202.81

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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.