Home / 103,809.85-143,257.61-56,063.22

Finding the Fourth Proportional to 103,809.85, 143,257.61 and 56,063.22

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Solution

The fourth proportional to 103,809.85, 143,257.61 and 56,063.22 is: 77,367.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,809.85 : 143,257.61 = 56,063.22 : x
  2. Step 2: Convert to fraction form
    103,809.85/143,257.61 = 56,063.22/x
  3. Step 3: Cross multiply
    103,809.85x = 143,257.61 × 56,063.22
  4. Step 4: Simplify right side
    103,809.85x = 8,031,482,906.10
  5. Step 5: Solve for x
    x = 8,031,482,906.10/103,809.85
  6. Step 6: Final answer
    x = 77,367.25

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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.