Home / 188,300.28-259,855.02-103,415.16

Finding the Fourth Proportional to 188,300.28, 259,855.02 and 103,415.16

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Solution

The fourth proportional to 188,300.28, 259,855.02 and 103,415.16 is: 142,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,300.28 : 259,855.02 = 103,415.16 : x
  2. Step 2: Convert to fraction form
    188,300.28/259,855.02 = 103,415.16/x
  3. Step 3: Cross multiply
    188,300.28x = 259,855.02 × 103,415.16
  4. Step 4: Simplify right side
    188,300.28x = 26,872,948,470.10
  5. Step 5: Solve for x
    x = 26,872,948,470.10/188,300.28
  6. Step 6: Final answer
    x = 142,713.27

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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.