Home / 161,528.81-222,909.76-89,907.29

Finding the Fourth Proportional to 161,528.81, 222,909.76 and 89,907.29

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Solution

The fourth proportional to 161,528.81, 222,909.76 and 89,907.29 is: 124,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,528.81 : 222,909.76 = 89,907.29 : x
  2. Step 2: Convert to fraction form
    161,528.81/222,909.76 = 89,907.29/x
  3. Step 3: Cross multiply
    161,528.81x = 222,909.76 × 89,907.29
  4. Step 4: Simplify right side
    161,528.81x = 20,041,212,436.15
  5. Step 5: Solve for x
    x = 20,041,212,436.15/161,528.81
  6. Step 6: Final answer
    x = 124,072.07

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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.