Home / 118,219.38-163,163.90-70,475.80

Finding the Fourth Proportional to 118,219.38, 163,163.90 and 70,475.80

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Solution

The fourth proportional to 118,219.38, 163,163.90 and 70,475.80 is: 97,269.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,219.38 : 163,163.90 = 70,475.80 : x
  2. Step 2: Convert to fraction form
    118,219.38/163,163.90 = 70,475.80/x
  3. Step 3: Cross multiply
    118,219.38x = 163,163.90 × 70,475.80
  4. Step 4: Simplify right side
    118,219.38x = 11,499,106,383.62
  5. Step 5: Solve for x
    x = 11,499,106,383.62/118,219.38
  6. Step 6: Final answer
    x = 97,269.22

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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.