Home / 117,621.06-162,384.33-77,451.54

Finding the Fourth Proportional to 117,621.06, 162,384.33 and 77,451.54

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Solution

The fourth proportional to 117,621.06, 162,384.33 and 77,451.54 is: 106,927.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,621.06 : 162,384.33 = 77,451.54 : x
  2. Step 2: Convert to fraction form
    117,621.06/162,384.33 = 77,451.54/x
  3. Step 3: Cross multiply
    117,621.06x = 162,384.33 × 77,451.54
  4. Step 4: Simplify right side
    117,621.06x = 12,576,916,430.37
  5. Step 5: Solve for x
    x = 12,576,916,430.37/117,621.06
  6. Step 6: Final answer
    x = 106,927.42

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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.