Home / 203,233.40-304,850.10-128,109.95

Finding the Fourth Proportional to 203,233.40, 304,850.10 and 128,109.95

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Solution

The fourth proportional to 203,233.40, 304,850.10 and 128,109.95 is: 192,164.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,233.40 : 304,850.10 = 128,109.95 : x
  2. Step 2: Convert to fraction form
    203,233.40/304,850.10 = 128,109.95/x
  3. Step 3: Cross multiply
    203,233.40x = 304,850.10 × 128,109.95
  4. Step 4: Simplify right side
    203,233.40x = 39,054,331,068.50
  5. Step 5: Solve for x
    x = 39,054,331,068.50/203,233.40
  6. Step 6: Final answer
    x = 192,164.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.