Home / 137,971.32-190,249.74-93,181.56

Finding the Fourth Proportional to 137,971.32, 190,249.74 and 93,181.56

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Solution

The fourth proportional to 137,971.32, 190,249.74 and 93,181.56 is: 128,488.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,971.32 : 190,249.74 = 93,181.56 : x
  2. Step 2: Convert to fraction form
    137,971.32/190,249.74 = 93,181.56/x
  3. Step 3: Cross multiply
    137,971.32x = 190,249.74 × 93,181.56
  4. Step 4: Simplify right side
    137,971.32x = 17,727,767,562.79
  5. Step 5: Solve for x
    x = 17,727,767,562.79/137,971.32
  6. Step 6: Final answer
    x = 128,488.79

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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.