Home / 118,360.56-163,338.50-64,644.60

Finding the Fourth Proportional to 118,360.56, 163,338.50 and 64,644.60

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Solution

The fourth proportional to 118,360.56, 163,338.50 and 64,644.60 is: 89,210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,360.56 : 163,338.50 = 64,644.60 : x
  2. Step 2: Convert to fraction form
    118,360.56/163,338.50 = 64,644.60/x
  3. Step 3: Cross multiply
    118,360.56x = 163,338.50 × 64,644.60
  4. Step 4: Simplify right side
    118,360.56x = 10,558,951,997.10
  5. Step 5: Solve for x
    x = 10,558,951,997.10/118,360.56
  6. Step 6: Final answer
    x = 89,210.05

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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.