Home / 104,221.81-143,826.60-56,475.15

Finding the Fourth Proportional to 104,221.81, 143,826.60 and 56,475.15

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Solution

The fourth proportional to 104,221.81, 143,826.60 and 56,475.15 is: 77,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,221.81 : 143,826.60 = 56,475.15 : x
  2. Step 2: Convert to fraction form
    104,221.81/143,826.60 = 56,475.15/x
  3. Step 3: Cross multiply
    104,221.81x = 143,826.60 × 56,475.15
  4. Step 4: Simplify right side
    104,221.81x = 8,122,628,808.99
  5. Step 5: Solve for x
    x = 8,122,628,808.99/104,221.81
  6. Step 6: Final answer
    x = 77,935.98

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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.