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Finding the Fourth Proportional to 111,725.40, 167,617.80 and 48,518.40

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Solution

The fourth proportional to 111,725.40, 167,617.80 and 48,518.40 is: 72,790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,725.40 : 167,617.80 = 48,518.40 : x
  2. Step 2: Convert to fraction form
    111,725.40/167,617.80 = 48,518.40/x
  3. Step 3: Cross multiply
    111,725.40x = 167,617.80 × 48,518.40
  4. Step 4: Simplify right side
    111,725.40x = 8,132,547,467.52
  5. Step 5: Solve for x
    x = 8,132,547,467.52/111,725.40
  6. Step 6: Final answer
    x = 72,790.50

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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.