Home / 123,783.16-185,665.56-39,539.92

Finding the Fourth Proportional to 123,783.16, 185,665.56 and 39,539.92

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Solution

The fourth proportional to 123,783.16, 185,665.56 and 39,539.92 is: 59,306.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,783.16 : 185,665.56 = 39,539.92 : x
  2. Step 2: Convert to fraction form
    123,783.16/185,665.56 = 39,539.92/x
  3. Step 3: Cross multiply
    123,783.16x = 185,665.56 × 39,539.92
  4. Step 4: Simplify right side
    123,783.16x = 7,341,201,389.16
  5. Step 5: Solve for x
    x = 7,341,201,389.16/123,783.16
  6. Step 6: Final answer
    x = 59,306.95

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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.