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Finding the Fourth Proportional to 100,110.37, 138,152.69 and 64,300.69

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Solution

The fourth proportional to 100,110.37, 138,152.69 and 64,300.69 is: 88,735.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,110.37 : 138,152.69 = 64,300.69 : x
  2. Step 2: Convert to fraction form
    100,110.37/138,152.69 = 64,300.69/x
  3. Step 3: Cross multiply
    100,110.37x = 138,152.69 × 64,300.69
  4. Step 4: Simplify right side
    100,110.37x = 8,883,313,292.36
  5. Step 5: Solve for x
    x = 8,883,313,292.36/100,110.37
  6. Step 6: Final answer
    x = 88,735.20

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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.