Home / 117,576.84-162,162.16-77,331.92

Finding the Fourth Proportional to 117,576.84, 162,162.16 and 77,331.92

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Solution

The fourth proportional to 117,576.84, 162,162.16 and 77,331.92 is: 106,656.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,576.84 : 162,162.16 = 77,331.92 : x
  2. Step 2: Convert to fraction form
    117,576.84/162,162.16 = 77,331.92/x
  3. Step 3: Cross multiply
    117,576.84x = 162,162.16 × 77,331.92
  4. Step 4: Simplify right side
    117,576.84x = 12,540,311,184.15
  5. Step 5: Solve for x
    x = 12,540,311,184.15/117,576.84
  6. Step 6: Final answer
    x = 106,656.30

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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.