Home / 111,851.12-167,835-45,340.40

Finding the Fourth Proportional to 111,851.12, 167,835 and 45,340.40

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Solution

The fourth proportional to 111,851.12, 167,835 and 45,340.40 is: 68,034.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,851.12 : 167,835 = 45,340.40 : x
  2. Step 2: Convert to fraction form
    111,851.12/167,835 = 45,340.40/x
  3. Step 3: Cross multiply
    111,851.12x = 167,835 × 45,340.40
  4. Step 4: Simplify right side
    111,851.12x = 7,609,706,034
  5. Step 5: Solve for x
    x = 7,609,706,034/111,851.12
  6. Step 6: Final answer
    x = 68,034.24

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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.