Home / 137,785.32-190,147.23-77,360.67

Finding the Fourth Proportional to 137,785.32, 190,147.23 and 77,360.67

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Solution

The fourth proportional to 137,785.32, 190,147.23 and 77,360.67 is: 106,759.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,785.32 : 190,147.23 = 77,360.67 : x
  2. Step 2: Convert to fraction form
    137,785.32/190,147.23 = 77,360.67/x
  3. Step 3: Cross multiply
    137,785.32x = 190,147.23 × 77,360.67
  4. Step 4: Simplify right side
    137,785.32x = 14,709,917,111.44
  5. Step 5: Solve for x
    x = 14,709,917,111.44/137,785.32
  6. Step 6: Final answer
    x = 106,759.68

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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.