Home / 120,957.28-166,925.34-66,513.58

Finding the Fourth Proportional to 120,957.28, 166,925.34 and 66,513.58

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Solution

The fourth proportional to 120,957.28, 166,925.34 and 66,513.58 is: 91,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,957.28 : 166,925.34 = 66,513.58 : x
  2. Step 2: Convert to fraction form
    120,957.28/166,925.34 = 66,513.58/x
  3. Step 3: Cross multiply
    120,957.28x = 166,925.34 × 66,513.58
  4. Step 4: Simplify right side
    120,957.28x = 11,102,801,538.80
  5. Step 5: Solve for x
    x = 11,102,801,538.80/120,957.28
  6. Step 6: Final answer
    x = 91,791.10

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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.