Home / 103,240.82-154,756.65-69,964.25

Finding the Fourth Proportional to 103,240.82, 154,756.65 and 69,964.25

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Solution

The fourth proportional to 103,240.82, 154,756.65 and 69,964.25 is: 104,875.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,240.82 : 154,756.65 = 69,964.25 : x
  2. Step 2: Convert to fraction form
    103,240.82/154,756.65 = 69,964.25/x
  3. Step 3: Cross multiply
    103,240.82x = 154,756.65 × 69,964.25
  4. Step 4: Simplify right side
    103,240.82x = 10,827,432,175.98
  5. Step 5: Solve for x
    x = 10,827,432,175.98/103,240.82
  6. Step 6: Final answer
    x = 104,875.50

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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.