Home / 166,036.28-249,127.34-87,132.06

Finding the Fourth Proportional to 166,036.28, 249,127.34 and 87,132.06

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Solution

The fourth proportional to 166,036.28, 249,127.34 and 87,132.06 is: 130,736.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,036.28 : 249,127.34 = 87,132.06 : x
  2. Step 2: Convert to fraction form
    166,036.28/249,127.34 = 87,132.06/x
  3. Step 3: Cross multiply
    166,036.28x = 249,127.34 × 87,132.06
  4. Step 4: Simplify right side
    166,036.28x = 21,706,977,900.86
  5. Step 5: Solve for x
    x = 21,706,977,900.86/166,036.28
  6. Step 6: Final answer
    x = 130,736.36

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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.