Home / 103,809.66-143,257.32-56,063.02

Finding the Fourth Proportional to 103,809.66, 143,257.32 and 56,063.02

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Solution

The fourth proportional to 103,809.66, 143,257.32 and 56,063.02 is: 77,366.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,809.66 : 143,257.32 = 56,063.02 : x
  2. Step 2: Convert to fraction form
    103,809.66/143,257.32 = 56,063.02/x
  3. Step 3: Cross multiply
    103,809.66x = 143,257.32 × 56,063.02
  4. Step 4: Simplify right side
    103,809.66x = 8,031,437,996.31
  5. Step 5: Solve for x
    x = 8,031,437,996.31/103,809.66
  6. Step 6: Final answer
    x = 77,366.96

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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.