Home / 103,935.08-143,431.72-63,087.40

Finding the Fourth Proportional to 103,935.08, 143,431.72 and 63,087.40

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Solution

The fourth proportional to 103,935.08, 143,431.72 and 63,087.40 is: 87,061.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,935.08 : 143,431.72 = 63,087.40 : x
  2. Step 2: Convert to fraction form
    103,935.08/143,431.72 = 63,087.40/x
  3. Step 3: Cross multiply
    103,935.08x = 143,431.72 × 63,087.40
  4. Step 4: Simplify right side
    103,935.08x = 9,048,734,292.33
  5. Step 5: Solve for x
    x = 9,048,734,292.33/103,935.08
  6. Step 6: Final answer
    x = 87,061.41

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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.