Home / 161,063.56-222,278-89,443.58

Finding the Fourth Proportional to 161,063.56, 222,278 and 89,443.58

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Solution

The fourth proportional to 161,063.56, 222,278 and 89,443.58 is: 123,437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,063.56 : 222,278 = 89,443.58 : x
  2. Step 2: Convert to fraction form
    161,063.56/222,278 = 89,443.58/x
  3. Step 3: Cross multiply
    161,063.56x = 222,278 × 89,443.58
  4. Step 4: Simplify right side
    161,063.56x = 19,881,340,075.24
  5. Step 5: Solve for x
    x = 19,881,340,075.24/161,063.56
  6. Step 6: Final answer
    x = 123,437.85

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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.