Home / 140,071.91-193,297.99-76,408.34

Finding the Fourth Proportional to 140,071.91, 193,297.99 and 76,408.34

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Solution

The fourth proportional to 140,071.91, 193,297.99 and 76,408.34 is: 105,442.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,071.91 : 193,297.99 = 76,408.34 : x
  2. Step 2: Convert to fraction form
    140,071.91/193,297.99 = 76,408.34/x
  3. Step 3: Cross multiply
    140,071.91x = 193,297.99 × 76,408.34
  4. Step 4: Simplify right side
    140,071.91x = 14,769,578,541.24
  5. Step 5: Solve for x
    x = 14,769,578,541.24/140,071.91
  6. Step 6: Final answer
    x = 105,442.83

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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.