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Finding the Fourth Proportional to 104,104.93, 143,665.95 and 56,359.30

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Solution

The fourth proportional to 104,104.93, 143,665.95 and 56,359.30 is: 77,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,104.93 : 143,665.95 = 56,359.30 : x
  2. Step 2: Convert to fraction form
    104,104.93/143,665.95 = 56,359.30/x
  3. Step 3: Cross multiply
    104,104.93x = 143,665.95 × 56,359.30
  4. Step 4: Simplify right side
    104,104.93x = 8,096,912,375.84
  5. Step 5: Solve for x
    x = 8,096,912,375.84/104,104.93
  6. Step 6: Final answer
    x = 77,776.45

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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.