Home / 166,422.17-249,695.62-86,410.19

Finding the Fourth Proportional to 166,422.17, 249,695.62 and 86,410.19

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Solution

The fourth proportional to 166,422.17, 249,695.62 and 86,410.19 is: 129,647.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,422.17 : 249,695.62 = 86,410.19 : x
  2. Step 2: Convert to fraction form
    166,422.17/249,695.62 = 86,410.19/x
  3. Step 3: Cross multiply
    166,422.17x = 249,695.62 × 86,410.19
  4. Step 4: Simplify right side
    166,422.17x = 21,576,245,966.37
  5. Step 5: Solve for x
    x = 21,576,245,966.37/166,422.17
  6. Step 6: Final answer
    x = 129,647.67

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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.