Home / 161,368.05-222,690.77-89,748.11

Finding the Fourth Proportional to 161,368.05, 222,690.77 and 89,748.11

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Solution

The fourth proportional to 161,368.05, 222,690.77 and 89,748.11 is: 123,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,368.05 : 222,690.77 = 89,748.11 : x
  2. Step 2: Convert to fraction form
    161,368.05/222,690.77 = 89,748.11/x
  3. Step 3: Cross multiply
    161,368.05x = 222,690.77 × 89,748.11
  4. Step 4: Simplify right side
    161,368.05x = 19,986,075,721.94
  5. Step 5: Solve for x
    x = 19,986,075,721.94/161,368.05
  6. Step 6: Final answer
    x = 123,853.98

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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.