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Finding the Fourth Proportional to 111,920.71, 167,950.19 and 45,361.39

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Solution

The fourth proportional to 111,920.71, 167,950.19 and 45,361.39 is: 68,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,920.71 : 167,950.19 = 45,361.39 : x
  2. Step 2: Convert to fraction form
    111,920.71/167,950.19 = 45,361.39/x
  3. Step 3: Cross multiply
    111,920.71x = 167,950.19 × 45,361.39
  4. Step 4: Simplify right side
    111,920.71x = 7,618,454,069.16
  5. Step 5: Solve for x
    x = 7,618,454,069.16/111,920.71
  6. Step 6: Final answer
    x = 68,070.10

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1.5x scale

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.