Home / 166,296.90-249,466.54-76,317.78

Finding the Fourth Proportional to 166,296.90, 249,466.54 and 76,317.78

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Solution

The fourth proportional to 166,296.90, 249,466.54 and 76,317.78 is: 114,486.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,296.90 : 249,466.54 = 76,317.78 : x
  2. Step 2: Convert to fraction form
    166,296.90/249,466.54 = 76,317.78/x
  3. Step 3: Cross multiply
    166,296.90x = 249,466.54 × 76,317.78
  4. Step 4: Simplify right side
    166,296.90x = 19,038,732,517.08
  5. Step 5: Solve for x
    x = 19,038,732,517.08/166,296.90
  6. Step 6: Final answer
    x = 114,486.39

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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.