Home / 161,075.10-222,394.84-100,672.90

Finding the Fourth Proportional to 161,075.10, 222,394.84 and 100,672.90

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Solution

The fourth proportional to 161,075.10, 222,394.84 and 100,672.90 is: 138,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,075.10 : 222,394.84 = 100,672.90 : x
  2. Step 2: Convert to fraction form
    161,075.10/222,394.84 = 100,672.90/x
  3. Step 3: Cross multiply
    161,075.10x = 222,394.84 × 100,672.90
  4. Step 4: Simplify right side
    161,075.10x = 22,389,133,487.84
  5. Step 5: Solve for x
    x = 22,389,133,487.84/161,075.10
  6. Step 6: Final answer
    x = 138,998.10

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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.