Home / 103,620.54-142,990.47-58,300.44

Finding the Fourth Proportional to 103,620.54, 142,990.47 and 58,300.44

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Solution

The fourth proportional to 103,620.54, 142,990.47 and 58,300.44 is: 80,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.54 : 142,990.47 = 58,300.44 : x
  2. Step 2: Convert to fraction form
    103,620.54/142,990.47 = 58,300.44/x
  3. Step 3: Cross multiply
    103,620.54x = 142,990.47 × 58,300.44
  4. Step 4: Simplify right side
    103,620.54x = 8,336,407,316.81
  5. Step 5: Solve for x
    x = 8,336,407,316.81/103,620.54
  6. Step 6: Final answer
    x = 80,451.30

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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.