Home / 148,028.39-204,280.40-81,726.92

Finding the Fourth Proportional to 148,028.39, 204,280.40 and 81,726.92

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Solution

The fourth proportional to 148,028.39, 204,280.40 and 81,726.92 is: 112,783.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,028.39 : 204,280.40 = 81,726.92 : x
  2. Step 2: Convert to fraction form
    148,028.39/204,280.40 = 81,726.92/x
  3. Step 3: Cross multiply
    148,028.39x = 204,280.40 × 81,726.92
  4. Step 4: Simplify right side
    148,028.39x = 16,695,208,010.43
  5. Step 5: Solve for x
    x = 16,695,208,010.43/148,028.39
  6. Step 6: Final answer
    x = 112,783.83

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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.