Home / 104,170.34-143,755.11-56,423.54

Finding the Fourth Proportional to 104,170.34, 143,755.11 and 56,423.54

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Solution

The fourth proportional to 104,170.34, 143,755.11 and 56,423.54 is: 77,864.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,170.34 : 143,755.11 = 56,423.54 : x
  2. Step 2: Convert to fraction form
    104,170.34/143,755.11 = 56,423.54/x
  3. Step 3: Cross multiply
    104,170.34x = 143,755.11 × 56,423.54
  4. Step 4: Simplify right side
    104,170.34x = 8,111,172,199.29
  5. Step 5: Solve for x
    x = 8,111,172,199.29/104,170.34
  6. Step 6: Final answer
    x = 77,864.51

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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.