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Finding the Fourth Proportional to 104,334.80, 143,980.68 and 56,586.80

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Solution

The fourth proportional to 104,334.80, 143,980.68 and 56,586.80 is: 78,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,334.80 : 143,980.68 = 56,586.80 : x
  2. Step 2: Convert to fraction form
    104,334.80/143,980.68 = 56,586.80/x
  3. Step 3: Cross multiply
    104,334.80x = 143,980.68 × 56,586.80
  4. Step 4: Simplify right side
    104,334.80x = 8,147,405,943.02
  5. Step 5: Solve for x
    x = 8,147,405,943.02/104,334.80
  6. Step 6: Final answer
    x = 78,089.06

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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.