Home / 103,627.78-143,017.41-63,365.14

Finding the Fourth Proportional to 103,627.78, 143,017.41 and 63,365.14

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Solution

The fourth proportional to 103,627.78, 143,017.41 and 63,365.14 is: 87,450.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,627.78 : 143,017.41 = 63,365.14 : x
  2. Step 2: Convert to fraction form
    103,627.78/143,017.41 = 63,365.14/x
  3. Step 3: Cross multiply
    103,627.78x = 143,017.41 × 63,365.14
  4. Step 4: Simplify right side
    103,627.78x = 9,062,318,207.09
  5. Step 5: Solve for x
    x = 9,062,318,207.09/103,627.78
  6. Step 6: Final answer
    x = 87,450.66

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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.