Home / 148,287.71-222,431.67-85,518.18

Finding the Fourth Proportional to 148,287.71, 222,431.67 and 85,518.18

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Solution

The fourth proportional to 148,287.71, 222,431.67 and 85,518.18 is: 128,277.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,287.71 : 222,431.67 = 85,518.18 : x
  2. Step 2: Convert to fraction form
    148,287.71/222,431.67 = 85,518.18/x
  3. Step 3: Cross multiply
    148,287.71x = 222,431.67 × 85,518.18
  4. Step 4: Simplify right side
    148,287.71x = 19,021,951,592.76
  5. Step 5: Solve for x
    x = 19,021,951,592.76/148,287.71
  6. Step 6: Final answer
    x = 128,277.33

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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.