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Finding the Fourth Proportional to 103,103.88, 142,280.99 and 60,080.63

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Solution

The fourth proportional to 103,103.88, 142,280.99 and 60,080.63 is: 82,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,103.88 : 142,280.99 = 60,080.63 : x
  2. Step 2: Convert to fraction form
    103,103.88/142,280.99 = 60,080.63/x
  3. Step 3: Cross multiply
    103,103.88x = 142,280.99 × 60,080.63
  4. Step 4: Simplify right side
    103,103.88x = 8,548,331,215.82
  5. Step 5: Solve for x
    x = 8,548,331,215.82/103,103.88
  6. Step 6: Final answer
    x = 82,909.89

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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.