Home / 104,516.61-144,134.69-80,605.41

Finding the Fourth Proportional to 104,516.61, 144,134.69 and 80,605.41

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Solution

The fourth proportional to 104,516.61, 144,134.69 and 80,605.41 is: 111,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,516.61 : 144,134.69 = 80,605.41 : x
  2. Step 2: Convert to fraction form
    104,516.61/144,134.69 = 80,605.41/x
  3. Step 3: Cross multiply
    104,516.61x = 144,134.69 × 80,605.41
  4. Step 4: Simplify right side
    104,516.61x = 11,618,035,379.65
  5. Step 5: Solve for x
    x = 11,618,035,379.65/104,516.61
  6. Step 6: Final answer
    x = 111,159.70

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1.5x scale

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.