Home / 104,555.88-144,286.83-56,809.40

Finding the Fourth Proportional to 104,555.88, 144,286.83 and 56,809.40

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Solution

The fourth proportional to 104,555.88, 144,286.83 and 56,809.40 is: 78,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,555.88 : 144,286.83 = 56,809.40 : x
  2. Step 2: Convert to fraction form
    104,555.88/144,286.83 = 56,809.40/x
  3. Step 3: Cross multiply
    104,555.88x = 144,286.83 × 56,809.40
  4. Step 4: Simplify right side
    104,555.88x = 8,196,847,518.77
  5. Step 5: Solve for x
    x = 8,196,847,518.77/104,555.88
  6. Step 6: Final answer
    x = 78,396.81

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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.