Home / 150,930.19-208,238.19-90,478.77

Finding the Fourth Proportional to 150,930.19, 208,238.19 and 90,478.77

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Solution

The fourth proportional to 150,930.19, 208,238.19 and 90,478.77 is: 124,833.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,930.19 : 208,238.19 = 90,478.77 : x
  2. Step 2: Convert to fraction form
    150,930.19/208,238.19 = 90,478.77/x
  3. Step 3: Cross multiply
    150,930.19x = 208,238.19 × 90,478.77
  4. Step 4: Simplify right side
    150,930.19x = 18,841,135,858.32
  5. Step 5: Solve for x
    x = 18,841,135,858.32/150,930.19
  6. Step 6: Final answer
    x = 124,833.45

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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.