Home / 103,608.10-142,977.76-58,286.07

Finding the Fourth Proportional to 103,608.10, 142,977.76 and 58,286.07

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Solution

The fourth proportional to 103,608.10, 142,977.76 and 58,286.07 is: 80,433.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,608.10 : 142,977.76 = 58,286.07 : x
  2. Step 2: Convert to fraction form
    103,608.10/142,977.76 = 58,286.07/x
  3. Step 3: Cross multiply
    103,608.10x = 142,977.76 × 58,286.07
  4. Step 4: Simplify right side
    103,608.10x = 8,333,611,727.80
  5. Step 5: Solve for x
    x = 8,333,611,727.80/103,608.10
  6. Step 6: Final answer
    x = 80,433.98

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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.