Home / 166,560.30-249,862.34-87,678.86

Finding the Fourth Proportional to 166,560.30, 249,862.34 and 87,678.86

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Solution

The fourth proportional to 166,560.30, 249,862.34 and 87,678.86 is: 131,529.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,560.30 : 249,862.34 = 87,678.86 : x
  2. Step 2: Convert to fraction form
    166,560.30/249,862.34 = 87,678.86/x
  3. Step 3: Cross multiply
    166,560.30x = 249,862.34 × 87,678.86
  4. Step 4: Simplify right side
    166,560.30x = 21,907,644,098.02
  5. Step 5: Solve for x
    x = 21,907,644,098.02/166,560.30
  6. Step 6: Final answer
    x = 131,529.81

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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.