Home / 137,742.44-190,069.96-77,319.73

Finding the Fourth Proportional to 137,742.44, 190,069.96 and 77,319.73

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Solution

The fourth proportional to 137,742.44, 190,069.96 and 77,319.73 is: 106,693.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,742.44 : 190,069.96 = 77,319.73 : x
  2. Step 2: Convert to fraction form
    137,742.44/190,069.96 = 77,319.73/x
  3. Step 3: Cross multiply
    137,742.44x = 190,069.96 × 77,319.73
  4. Step 4: Simplify right side
    137,742.44x = 14,696,157,988.31
  5. Step 5: Solve for x
    x = 14,696,157,988.31/137,742.44
  6. Step 6: Final answer
    x = 106,693.03

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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.