Home / 111,639.40-167,464.58-45,071.21

Finding the Fourth Proportional to 111,639.40, 167,464.58 and 45,071.21

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Solution

The fourth proportional to 111,639.40, 167,464.58 and 45,071.21 is: 67,609.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,639.40 : 167,464.58 = 45,071.21 : x
  2. Step 2: Convert to fraction form
    111,639.40/167,464.58 = 45,071.21/x
  3. Step 3: Cross multiply
    111,639.40x = 167,464.58 × 45,071.21
  4. Step 4: Simplify right side
    111,639.40x = 7,547,831,446.05
  5. Step 5: Solve for x
    x = 7,547,831,446.05/111,639.40
  6. Step 6: Final answer
    x = 67,609.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.