Home / 104,078.50-143,628.06-56,331.84

Finding the Fourth Proportional to 104,078.50, 143,628.06 and 56,331.84

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Solution

The fourth proportional to 104,078.50, 143,628.06 and 56,331.84 is: 77,737.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,078.50 : 143,628.06 = 56,331.84 : x
  2. Step 2: Convert to fraction form
    104,078.50/143,628.06 = 56,331.84/x
  3. Step 3: Cross multiply
    104,078.50x = 143,628.06 × 56,331.84
  4. Step 4: Simplify right side
    104,078.50x = 8,090,832,895.43
  5. Step 5: Solve for x
    x = 8,090,832,895.43/104,078.50
  6. Step 6: Final answer
    x = 77,737.79

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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.