Home / 480,103.19-720,155.03-125,116.31

Finding the Fourth Proportional to 480,103.19, 720,155.03 and 125,116.31

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Solution

The fourth proportional to 480,103.19, 720,155.03 and 125,116.31 is: 187,674.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,103.19 : 720,155.03 = 125,116.31 : x
  2. Step 2: Convert to fraction form
    480,103.19/720,155.03 = 125,116.31/x
  3. Step 3: Cross multiply
    480,103.19x = 720,155.03 × 125,116.31
  4. Step 4: Simplify right side
    480,103.19x = 90,103,139,981.54
  5. Step 5: Solve for x
    x = 90,103,139,981.54/480,103.19
  6. Step 6: Final answer
    x = 187,674.53

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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.