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Finding the Fourth Proportional to 103,967.58, 143,474.58 and 56,220.72

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Solution

The fourth proportional to 103,967.58, 143,474.58 and 56,220.72 is: 77,584.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,967.58 : 143,474.58 = 56,220.72 : x
  2. Step 2: Convert to fraction form
    103,967.58/143,474.58 = 56,220.72/x
  3. Step 3: Cross multiply
    103,967.58x = 143,474.58 × 56,220.72
  4. Step 4: Simplify right side
    103,967.58x = 8,066,244,189.30
  5. Step 5: Solve for x
    x = 8,066,244,189.30/103,967.58
  6. Step 6: Final answer
    x = 77,584.23

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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.