Home / 137,828.48-190,224.12-84,144.80

Finding the Fourth Proportional to 137,828.48, 190,224.12 and 84,144.80

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Solution

The fourth proportional to 137,828.48, 190,224.12 and 84,144.80 is: 116,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,828.48 : 190,224.12 = 84,144.80 : x
  2. Step 2: Convert to fraction form
    137,828.48/190,224.12 = 84,144.80/x
  3. Step 3: Cross multiply
    137,828.48x = 190,224.12 × 84,144.80
  4. Step 4: Simplify right side
    137,828.48x = 16,006,370,532.58
  5. Step 5: Solve for x
    x = 16,006,370,532.58/137,828.48
  6. Step 6: Final answer
    x = 116,132.53

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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.