Home / 137,973.22-190,404.74-77,540.34

Finding the Fourth Proportional to 137,973.22, 190,404.74 and 77,540.34

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Solution

The fourth proportional to 137,973.22, 190,404.74 and 77,540.34 is: 107,006.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,973.22 : 190,404.74 = 77,540.34 : x
  2. Step 2: Convert to fraction form
    137,973.22/190,404.74 = 77,540.34/x
  3. Step 3: Cross multiply
    137,973.22x = 190,404.74 × 77,540.34
  4. Step 4: Simplify right side
    137,973.22x = 14,764,048,277.21
  5. Step 5: Solve for x
    x = 14,764,048,277.21/137,973.22
  6. Step 6: Final answer
    x = 107,006.62

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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.