Home / 103,640.10-143,017.82-61,183.14

Finding the Fourth Proportional to 103,640.10, 143,017.82 and 61,183.14

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Solution

The fourth proportional to 103,640.10, 143,017.82 and 61,183.14 is: 84,429.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.10 : 143,017.82 = 61,183.14 : x
  2. Step 2: Convert to fraction form
    103,640.10/143,017.82 = 61,183.14/x
  3. Step 3: Cross multiply
    103,640.10x = 143,017.82 × 61,183.14
  4. Step 4: Simplify right side
    103,640.10x = 8,750,279,303.55
  5. Step 5: Solve for x
    x = 8,750,279,303.55/103,640.10
  6. Step 6: Final answer
    x = 84,429.48

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1.5x scale

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.