Home / 166,412.45-249,618.06-77,616.60

Finding the Fourth Proportional to 166,412.45, 249,618.06 and 77,616.60

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Solution

The fourth proportional to 166,412.45, 249,618.06 and 77,616.60 is: 116,424.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,412.45 : 249,618.06 = 77,616.60 : x
  2. Step 2: Convert to fraction form
    166,412.45/249,618.06 = 77,616.60/x
  3. Step 3: Cross multiply
    166,412.45x = 249,618.06 × 77,616.60
  4. Step 4: Simplify right side
    166,412.45x = 19,374,505,115.80
  5. Step 5: Solve for x
    x = 19,374,505,115.80/166,412.45
  6. Step 6: Final answer
    x = 116,424.62

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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.