Home / 100,800.09-151,293.54-50,915.15

Finding the Fourth Proportional to 100,800.09, 151,293.54 and 50,915.15

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Solution

The fourth proportional to 100,800.09, 151,293.54 and 50,915.15 is: 76,419.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,800.09 : 151,293.54 = 50,915.15 : x
  2. Step 2: Convert to fraction form
    100,800.09/151,293.54 = 50,915.15/x
  3. Step 3: Cross multiply
    100,800.09x = 151,293.54 × 50,915.15
  4. Step 4: Simplify right side
    100,800.09x = 7,703,133,283.13
  5. Step 5: Solve for x
    x = 7,703,133,283.13/100,800.09
  6. Step 6: Final answer
    x = 76,419.90

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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.