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Finding the Fourth Proportional to 111,946.90, 167,920.35 and 28,840.90

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Solution

The fourth proportional to 111,946.90, 167,920.35 and 28,840.90 is: 43,261.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,946.90 : 167,920.35 = 28,840.90 : x
  2. Step 2: Convert to fraction form
    111,946.90/167,920.35 = 28,840.90/x
  3. Step 3: Cross multiply
    111,946.90x = 167,920.35 × 28,840.90
  4. Step 4: Simplify right side
    111,946.90x = 4,842,974,022.32
  5. Step 5: Solve for x
    x = 4,842,974,022.32/111,946.90
  6. Step 6: Final answer
    x = 43,261.35

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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.