Home / 166,405.74-249,830.05-87,575.33

Finding the Fourth Proportional to 166,405.74, 249,830.05 and 87,575.33

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Solution

The fourth proportional to 166,405.74, 249,830.05 and 87,575.33 is: 131,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,405.74 : 249,830.05 = 87,575.33 : x
  2. Step 2: Convert to fraction form
    166,405.74/249,830.05 = 87,575.33/x
  3. Step 3: Cross multiply
    166,405.74x = 249,830.05 × 87,575.33
  4. Step 4: Simplify right side
    166,405.74x = 21,878,947,990.91
  5. Step 5: Solve for x
    x = 21,878,947,990.91/166,405.74
  6. Step 6: Final answer
    x = 131,479.53

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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.