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Finding the Fourth Proportional to 188,679.60, 283,019.40 and 100,106.10

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Solution

The fourth proportional to 188,679.60, 283,019.40 and 100,106.10 is: 150,159.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,679.60 : 283,019.40 = 100,106.10 : x
  2. Step 2: Convert to fraction form
    188,679.60/283,019.40 = 100,106.10/x
  3. Step 3: Cross multiply
    188,679.60x = 283,019.40 × 100,106.10
  4. Step 4: Simplify right side
    188,679.60x = 28,331,968,358.34
  5. Step 5: Solve for x
    x = 28,331,968,358.34/188,679.60
  6. Step 6: Final answer
    x = 150,159.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.