Home / 203,278.10-304,965.59-70,159.50

Finding the Fourth Proportional to 203,278.10, 304,965.59 and 70,159.50

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Solution

The fourth proportional to 203,278.10, 304,965.59 and 70,159.50 is: 105,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,278.10 : 304,965.59 = 70,159.50 : x
  2. Step 2: Convert to fraction form
    203,278.10/304,965.59 = 70,159.50/x
  3. Step 3: Cross multiply
    203,278.10x = 304,965.59 × 70,159.50
  4. Step 4: Simplify right side
    203,278.10x = 21,396,232,960.81
  5. Step 5: Solve for x
    x = 21,396,232,960.81/203,278.10
  6. Step 6: Final answer
    x = 105,255.97

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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.