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Finding the Fourth Proportional to 103,561.97, 142,914.16 and 58,239.94

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Solution

The fourth proportional to 103,561.97, 142,914.16 and 58,239.94 is: 80,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,561.97 : 142,914.16 = 58,239.94 : x
  2. Step 2: Convert to fraction form
    103,561.97/142,914.16 = 58,239.94/x
  3. Step 3: Cross multiply
    103,561.97x = 142,914.16 × 58,239.94
  4. Step 4: Simplify right side
    103,561.97x = 8,323,312,103.55
  5. Step 5: Solve for x
    x = 8,323,312,103.55/103,561.97
  6. Step 6: Final answer
    x = 80,370.35

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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.