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Finding the Fourth Proportional to 112,668, 155,485.08 and 62,370.24

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Solution

The fourth proportional to 112,668, 155,485.08 and 62,370.24 is: 86,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,668 : 155,485.08 = 62,370.24 : x
  2. Step 2: Convert to fraction form
    112,668/155,485.08 = 62,370.24/x
  3. Step 3: Cross multiply
    112,668x = 155,485.08 × 62,370.24
  4. Step 4: Simplify right side
    112,668x = 9,697,641,756.02
  5. Step 5: Solve for x
    x = 9,697,641,756.02/112,668
  6. Step 6: Final answer
    x = 86,072.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.