Home / 103,666.20-143,059.20-58,344.51

Finding the Fourth Proportional to 103,666.20, 143,059.20 and 58,344.51

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Solution

The fourth proportional to 103,666.20, 143,059.20 and 58,344.51 is: 80,515.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,666.20 : 143,059.20 = 58,344.51 : x
  2. Step 2: Convert to fraction form
    103,666.20/143,059.20 = 58,344.51/x
  3. Step 3: Cross multiply
    103,666.20x = 143,059.20 × 58,344.51
  4. Step 4: Simplify right side
    103,666.20x = 8,346,718,924.99
  5. Step 5: Solve for x
    x = 8,346,718,924.99/103,666.20
  6. Step 6: Final answer
    x = 80,515.34

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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.