Home / 148,692.12-204,676.54-128,338.76

Finding the Fourth Proportional to 148,692.12, 204,676.54 and 128,338.76

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Solution

The fourth proportional to 148,692.12, 204,676.54 and 128,338.76 is: 176,659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,692.12 : 204,676.54 = 128,338.76 : x
  2. Step 2: Convert to fraction form
    148,692.12/204,676.54 = 128,338.76/x
  3. Step 3: Cross multiply
    148,692.12x = 204,676.54 × 128,338.76
  4. Step 4: Simplify right side
    148,692.12x = 26,267,932,942.77
  5. Step 5: Solve for x
    x = 26,267,932,942.77/148,692.12
  6. Step 6: Final answer
    x = 176,659.88

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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.