Home / 103,857.24-143,325.78-63,570.26

Finding the Fourth Proportional to 103,857.24, 143,325.78 and 63,570.26

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Solution

The fourth proportional to 103,857.24, 143,325.78 and 63,570.26 is: 87,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,857.24 : 143,325.78 = 63,570.26 : x
  2. Step 2: Convert to fraction form
    103,857.24/143,325.78 = 63,570.26/x
  3. Step 3: Cross multiply
    103,857.24x = 143,325.78 × 63,570.26
  4. Step 4: Simplify right side
    103,857.24x = 9,111,257,099.30
  5. Step 5: Solve for x
    x = 9,111,257,099.30/103,857.24
  6. Step 6: Final answer
    x = 87,728.67

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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.