Home / 146,867.20-202,688.40-83,220.64

Finding the Fourth Proportional to 146,867.20, 202,688.40 and 83,220.64

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Solution

The fourth proportional to 146,867.20, 202,688.40 and 83,220.64 is: 114,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,867.20 : 202,688.40 = 83,220.64 : x
  2. Step 2: Convert to fraction form
    146,867.20/202,688.40 = 83,220.64/x
  3. Step 3: Cross multiply
    146,867.20x = 202,688.40 × 83,220.64
  4. Step 4: Simplify right side
    146,867.20x = 16,867,858,368.58
  5. Step 5: Solve for x
    x = 16,867,858,368.58/146,867.20
  6. Step 6: Final answer
    x = 114,851.09

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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.