Home / 111,975.40-161,742.24-111,975.40

Finding the Fourth Proportional to 111,975.40, 161,742.24 and 111,975.40

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Solution

The fourth proportional to 111,975.40, 161,742.24 and 111,975.40 is: 161,742.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,975.40 : 161,742.24 = 111,975.40 : x
  2. Step 2: Convert to fraction form
    111,975.40/161,742.24 = 111,975.40/x
  3. Step 3: Cross multiply
    111,975.40x = 161,742.24 × 111,975.40
  4. Step 4: Simplify right side
    111,975.40x = 18,111,152,020.90
  5. Step 5: Solve for x
    x = 18,111,152,020.90/111,975.40
  6. Step 6: Final answer
    x = 161,742.24

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.