Home / 137,670.16-190,096.86-112,180.36

Finding the Fourth Proportional to 137,670.16, 190,096.86 and 112,180.36

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Solution

The fourth proportional to 137,670.16, 190,096.86 and 112,180.36 is: 154,900.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,670.16 : 190,096.86 = 112,180.36 : x
  2. Step 2: Convert to fraction form
    137,670.16/190,096.86 = 112,180.36/x
  3. Step 3: Cross multiply
    137,670.16x = 190,096.86 × 112,180.36
  4. Step 4: Simplify right side
    137,670.16x = 21,325,134,189.67
  5. Step 5: Solve for x
    x = 21,325,134,189.67/137,670.16
  6. Step 6: Final answer
    x = 154,900.19

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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.