Home / 161,515.11-222,888.60-89,895.15

Finding the Fourth Proportional to 161,515.11, 222,888.60 and 89,895.15

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Solution

The fourth proportional to 161,515.11, 222,888.60 and 89,895.15 is: 124,054.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,515.11 : 222,888.60 = 89,895.15 : x
  2. Step 2: Convert to fraction form
    161,515.11/222,888.60 = 89,895.15/x
  3. Step 3: Cross multiply
    161,515.11x = 222,888.60 × 89,895.15
  4. Step 4: Simplify right side
    161,515.11x = 20,036,604,130.29
  5. Step 5: Solve for x
    x = 20,036,604,130.29/161,515.11
  6. Step 6: Final answer
    x = 124,054.05

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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.