Home / 137,873.97-190,266.18-77,444.65

Finding the Fourth Proportional to 137,873.97, 190,266.18 and 77,444.65

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Solution

The fourth proportional to 137,873.97, 190,266.18 and 77,444.65 is: 106,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,873.97 : 190,266.18 = 77,444.65 : x
  2. Step 2: Convert to fraction form
    137,873.97/190,266.18 = 77,444.65/x
  3. Step 3: Cross multiply
    137,873.97x = 190,266.18 × 77,444.65
  4. Step 4: Simplify right side
    137,873.97x = 14,735,097,716.94
  5. Step 5: Solve for x
    x = 14,735,097,716.94/137,873.97
  6. Step 6: Final answer
    x = 106,873.67

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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.