Home / 166,422.40-249,633.60-140,081.20

Finding the Fourth Proportional to 166,422.40, 249,633.60 and 140,081.20

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Solution

The fourth proportional to 166,422.40, 249,633.60 and 140,081.20 is: 210,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,422.40 : 249,633.60 = 140,081.20 : x
  2. Step 2: Convert to fraction form
    166,422.40/249,633.60 = 140,081.20/x
  3. Step 3: Cross multiply
    166,422.40x = 249,633.60 × 140,081.20
  4. Step 4: Simplify right side
    166,422.40x = 34,968,974,248.32
  5. Step 5: Solve for x
    x = 34,968,974,248.32/166,422.40
  6. Step 6: Final answer
    x = 210,121.80

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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.