Home / 150,392-207,540.96-89,965.19

Finding the Fourth Proportional to 150,392, 207,540.96 and 89,965.19

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Solution

The fourth proportional to 150,392, 207,540.96 and 89,965.19 is: 124,151.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,392 : 207,540.96 = 89,965.19 : x
  2. Step 2: Convert to fraction form
    150,392/207,540.96 = 89,965.19/x
  3. Step 3: Cross multiply
    150,392x = 207,540.96 × 89,965.19
  4. Step 4: Simplify right side
    150,392x = 18,671,461,899.18
  5. Step 5: Solve for x
    x = 18,671,461,899.18/150,392
  6. Step 6: Final answer
    x = 124,151.96

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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.