Home / 124,240.46-171,408.10-81,245.12

Finding the Fourth Proportional to 124,240.46, 171,408.10 and 81,245.12

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Solution

The fourth proportional to 124,240.46, 171,408.10 and 81,245.12 is: 112,089.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,240.46 : 171,408.10 = 81,245.12 : x
  2. Step 2: Convert to fraction form
    124,240.46/171,408.10 = 81,245.12/x
  3. Step 3: Cross multiply
    124,240.46x = 171,408.10 × 81,245.12
  4. Step 4: Simplify right side
    124,240.46x = 13,926,071,653.47
  5. Step 5: Solve for x
    x = 13,926,071,653.47/124,240.46
  6. Step 6: Final answer
    x = 112,089.67

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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.