Home / 163,616.50-245,427.78-51,294.20

Finding the Fourth Proportional to 163,616.50, 245,427.78 and 51,294.20

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Solution

The fourth proportional to 163,616.50, 245,427.78 and 51,294.20 is: 76,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,616.50 : 245,427.78 = 51,294.20 : x
  2. Step 2: Convert to fraction form
    163,616.50/245,427.78 = 51,294.20/x
  3. Step 3: Cross multiply
    163,616.50x = 245,427.78 × 51,294.20
  4. Step 4: Simplify right side
    163,616.50x = 12,589,021,632.88
  5. Step 5: Solve for x
    x = 12,589,021,632.88/163,616.50
  6. Step 6: Final answer
    x = 76,942.25

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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.