Home / 130,619.49-180,085.78-84,597.26

Finding the Fourth Proportional to 130,619.49, 180,085.78 and 84,597.26

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Solution

The fourth proportional to 130,619.49, 180,085.78 and 84,597.26 is: 116,634.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,619.49 : 180,085.78 = 84,597.26 : x
  2. Step 2: Convert to fraction form
    130,619.49/180,085.78 = 84,597.26/x
  3. Step 3: Cross multiply
    130,619.49x = 180,085.78 × 84,597.26
  4. Step 4: Simplify right side
    130,619.49x = 15,234,763,771.26
  5. Step 5: Solve for x
    x = 15,234,763,771.26/130,619.49
  6. Step 6: Final answer
    x = 116,634.69

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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.