Home / 104,102.09-143,660.86-56,355.40

Finding the Fourth Proportional to 104,102.09, 143,660.86 and 56,355.40

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Solution

The fourth proportional to 104,102.09, 143,660.86 and 56,355.40 is: 77,770.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,102.09 : 143,660.86 = 56,355.40 : x
  2. Step 2: Convert to fraction form
    104,102.09/143,660.86 = 56,355.40/x
  3. Step 3: Cross multiply
    104,102.09x = 143,660.86 × 56,355.40
  4. Step 4: Simplify right side
    104,102.09x = 8,096,065,229.64
  5. Step 5: Solve for x
    x = 8,096,065,229.64/104,102.09
  6. Step 6: Final answer
    x = 77,770.44

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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.