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Finding the Fourth Proportional to 103,880.64, 143,344.32 and 58,548.48

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Solution

The fourth proportional to 103,880.64, 143,344.32 and 58,548.48 is: 80,790.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,880.64 : 143,344.32 = 58,548.48 : x
  2. Step 2: Convert to fraction form
    103,880.64/143,344.32 = 58,548.48/x
  3. Step 3: Cross multiply
    103,880.64x = 143,344.32 × 58,548.48
  4. Step 4: Simplify right side
    103,880.64x = 8,392,592,052.63
  5. Step 5: Solve for x
    x = 8,392,592,052.63/103,880.64
  6. Step 6: Final answer
    x = 80,790.72

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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.