Home / 166,186.99-249,180.24-77,460.40

Finding the Fourth Proportional to 166,186.99, 249,180.24 and 77,460.40

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Solution

The fourth proportional to 166,186.99, 249,180.24 and 77,460.40 is: 116,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,186.99 : 249,180.24 = 77,460.40 : x
  2. Step 2: Convert to fraction form
    166,186.99/249,180.24 = 77,460.40/x
  3. Step 3: Cross multiply
    166,186.99x = 249,180.24 × 77,460.40
  4. Step 4: Simplify right side
    166,186.99x = 19,301,599,816.59
  5. Step 5: Solve for x
    x = 19,301,599,816.59/166,186.99
  6. Step 6: Final answer
    x = 116,143.87

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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.