Home / 147,543.17-203,626.85-83,890.53

Finding the Fourth Proportional to 147,543.17, 203,626.85 and 83,890.53

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Solution

The fourth proportional to 147,543.17, 203,626.85 and 83,890.53 is: 115,778.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,543.17 : 203,626.85 = 83,890.53 : x
  2. Step 2: Convert to fraction form
    147,543.17/203,626.85 = 83,890.53/x
  3. Step 3: Cross multiply
    147,543.17x = 203,626.85 × 83,890.53
  4. Step 4: Simplify right side
    147,543.17x = 17,082,363,949.28
  5. Step 5: Solve for x
    x = 17,082,363,949.28/147,543.17
  6. Step 6: Final answer
    x = 115,778.75

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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.