Home / 103,970.22-143,475.68-58,647.54

Finding the Fourth Proportional to 103,970.22, 143,475.68 and 58,647.54

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Solution

The fourth proportional to 103,970.22, 143,475.68 and 58,647.54 is: 80,931.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,970.22 : 143,475.68 = 58,647.54 : x
  2. Step 2: Convert to fraction form
    103,970.22/143,475.68 = 58,647.54/x
  3. Step 3: Cross multiply
    103,970.22x = 143,475.68 × 58,647.54
  4. Step 4: Simplify right side
    103,970.22x = 8,414,495,681.83
  5. Step 5: Solve for x
    x = 8,414,495,681.83/103,970.22
  6. Step 6: Final answer
    x = 80,931.79

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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.