Home / 103,628.78-143,018.79-63,366.14

Finding the Fourth Proportional to 103,628.78, 143,018.79 and 63,366.14

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Solution

The fourth proportional to 103,628.78, 143,018.79 and 63,366.14 is: 87,452.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.78 : 143,018.79 = 63,366.14 : x
  2. Step 2: Convert to fraction form
    103,628.78/143,018.79 = 63,366.14/x
  3. Step 3: Cross multiply
    103,628.78x = 143,018.79 × 63,366.14
  4. Step 4: Simplify right side
    103,628.78x = 9,062,548,669.77
  5. Step 5: Solve for x
    x = 9,062,548,669.77/103,628.78
  6. Step 6: Final answer
    x = 87,452.04

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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.