Home / 104,021.34-143,549.32-56,274.54

Finding the Fourth Proportional to 104,021.34, 143,549.32 and 56,274.54

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Solution

The fourth proportional to 104,021.34, 143,549.32 and 56,274.54 is: 77,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,021.34 : 143,549.32 = 56,274.54 : x
  2. Step 2: Convert to fraction form
    104,021.34/143,549.32 = 56,274.54/x
  3. Step 3: Cross multiply
    104,021.34x = 143,549.32 × 56,274.54
  4. Step 4: Simplify right side
    104,021.34x = 8,078,171,950.31
  5. Step 5: Solve for x
    x = 8,078,171,950.31/104,021.34
  6. Step 6: Final answer
    x = 77,658.80

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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.