Home / 111,269.09-153,542.89-63,515.95

Finding the Fourth Proportional to 111,269.09, 153,542.89 and 63,515.95

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Solution

The fourth proportional to 111,269.09, 153,542.89 and 63,515.95 is: 87,647.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,269.09 : 153,542.89 = 63,515.95 : x
  2. Step 2: Convert to fraction form
    111,269.09/153,542.89 = 63,515.95/x
  3. Step 3: Cross multiply
    111,269.09x = 153,542.89 × 63,515.95
  4. Step 4: Simplify right side
    111,269.09x = 9,752,422,219.63
  5. Step 5: Solve for x
    x = 9,752,422,219.63/111,269.09
  6. Step 6: Final answer
    x = 87,647.18

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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.