Home / 166,193.78-249,291.08-66,362.10

Finding the Fourth Proportional to 166,193.78, 249,291.08 and 66,362.10

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Solution

The fourth proportional to 166,193.78, 249,291.08 and 66,362.10 is: 99,543.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,193.78 : 249,291.08 = 66,362.10 : x
  2. Step 2: Convert to fraction form
    166,193.78/249,291.08 = 66,362.10/x
  3. Step 3: Cross multiply
    166,193.78x = 249,291.08 × 66,362.10
  4. Step 4: Simplify right side
    166,193.78x = 16,543,479,580.07
  5. Step 5: Solve for x
    x = 16,543,479,580.07/166,193.78
  6. Step 6: Final answer
    x = 99,543.31

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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.