Home / 147,385.21-203,399.90-111,512.94

Finding the Fourth Proportional to 147,385.21, 203,399.90 and 111,512.94

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Solution

The fourth proportional to 147,385.21, 203,399.90 and 111,512.94 is: 153,894.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,385.21 : 203,399.90 = 111,512.94 : x
  2. Step 2: Convert to fraction form
    147,385.21/203,399.90 = 111,512.94/x
  3. Step 3: Cross multiply
    147,385.21x = 203,399.90 × 111,512.94
  4. Step 4: Simplify right side
    147,385.21x = 22,681,720,844.71
  5. Step 5: Solve for x
    x = 22,681,720,844.71/147,385.21
  6. Step 6: Final answer
    x = 153,894.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.