Home / 104,980.20-157,424.13-38,403.06

Finding the Fourth Proportional to 104,980.20, 157,424.13 and 38,403.06

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Solution

The fourth proportional to 104,980.20, 157,424.13 and 38,403.06 is: 57,587.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,980.20 : 157,424.13 = 38,403.06 : x
  2. Step 2: Convert to fraction form
    104,980.20/157,424.13 = 38,403.06/x
  3. Step 3: Cross multiply
    104,980.20x = 157,424.13 × 38,403.06
  4. Step 4: Simplify right side
    104,980.20x = 6,045,568,309.84
  5. Step 5: Solve for x
    x = 6,045,568,309.84/104,980.20
  6. Step 6: Final answer
    x = 57,587.70

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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.