Home / 106,618.71-159,921.57-31,739.07

Finding the Fourth Proportional to 106,618.71, 159,921.57 and 31,739.07

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Solution

The fourth proportional to 106,618.71, 159,921.57 and 31,739.07 is: 47,606.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,618.71 : 159,921.57 = 31,739.07 : x
  2. Step 2: Convert to fraction form
    106,618.71/159,921.57 = 31,739.07/x
  3. Step 3: Cross multiply
    106,618.71x = 159,921.57 × 31,739.07
  4. Step 4: Simplify right side
    106,618.71x = 5,075,761,904.74
  5. Step 5: Solve for x
    x = 5,075,761,904.74/106,618.71
  6. Step 6: Final answer
    x = 47,606.67

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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.