Home / 147,526.29-221,091.78-138,078.45

Finding the Fourth Proportional to 147,526.29, 221,091.78 and 138,078.45

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Solution

The fourth proportional to 147,526.29, 221,091.78 and 138,078.45 is: 206,932.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,526.29 : 221,091.78 = 138,078.45 : x
  2. Step 2: Convert to fraction form
    147,526.29/221,091.78 = 138,078.45/x
  3. Step 3: Cross multiply
    147,526.29x = 221,091.78 × 138,078.45
  4. Step 4: Simplify right side
    147,526.29x = 30,528,010,290.14
  5. Step 5: Solve for x
    x = 30,528,010,290.14/147,526.29
  6. Step 6: Final answer
    x = 206,932.68

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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.