Home / 105,266.09-157,616.19-80,186.67

Finding the Fourth Proportional to 105,266.09, 157,616.19 and 80,186.67

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Solution

The fourth proportional to 105,266.09, 157,616.19 and 80,186.67 is: 120,064.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,266.09 : 157,616.19 = 80,186.67 : x
  2. Step 2: Convert to fraction form
    105,266.09/157,616.19 = 80,186.67/x
  3. Step 3: Cross multiply
    105,266.09x = 157,616.19 × 80,186.67
  4. Step 4: Simplify right side
    105,266.09x = 12,638,717,414.19
  5. Step 5: Solve for x
    x = 12,638,717,414.19/105,266.09
  6. Step 6: Final answer
    x = 120,064.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.