Home / 257,895.20-386,852.52-70,921.28

Finding the Fourth Proportional to 257,895.20, 386,852.52 and 70,921.28

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Solution

The fourth proportional to 257,895.20, 386,852.52 and 70,921.28 is: 106,384.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,895.20 : 386,852.52 = 70,921.28 : x
  2. Step 2: Convert to fraction form
    257,895.20/386,852.52 = 70,921.28/x
  3. Step 3: Cross multiply
    257,895.20x = 386,852.52 × 70,921.28
  4. Step 4: Simplify right side
    257,895.20x = 27,436,075,889.63
  5. Step 5: Solve for x
    x = 27,436,075,889.63/257,895.20
  6. Step 6: Final answer
    x = 106,384.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.