Home / 159,431.69-220,031.25-119,075.38

Finding the Fourth Proportional to 159,431.69, 220,031.25 and 119,075.38

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Solution

The fourth proportional to 159,431.69, 220,031.25 and 119,075.38 is: 164,335.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,431.69 : 220,031.25 = 119,075.38 : x
  2. Step 2: Convert to fraction form
    159,431.69/220,031.25 = 119,075.38/x
  3. Step 3: Cross multiply
    159,431.69x = 220,031.25 × 119,075.38
  4. Step 4: Simplify right side
    159,431.69x = 26,200,304,705.63
  5. Step 5: Solve for x
    x = 26,200,304,705.63/159,431.69
  6. Step 6: Final answer
    x = 164,335.61

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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.