Home / 150,836.09-208,224.56-87,161.45

Finding the Fourth Proportional to 150,836.09, 208,224.56 and 87,161.45

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Solution

The fourth proportional to 150,836.09, 208,224.56 and 87,161.45 is: 120,323.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,836.09 : 208,224.56 = 87,161.45 : x
  2. Step 2: Convert to fraction form
    150,836.09/208,224.56 = 87,161.45/x
  3. Step 3: Cross multiply
    150,836.09x = 208,224.56 × 87,161.45
  4. Step 4: Simplify right side
    150,836.09x = 18,149,154,139.40
  5. Step 5: Solve for x
    x = 18,149,154,139.40/150,836.09
  6. Step 6: Final answer
    x = 120,323.68

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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.