Home / 165,860.20-249,404.70-138,826.60

Finding the Fourth Proportional to 165,860.20, 249,404.70 and 138,826.60

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Solution

The fourth proportional to 165,860.20, 249,404.70 and 138,826.60 is: 208,754.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,860.20 : 249,404.70 = 138,826.60 : x
  2. Step 2: Convert to fraction form
    165,860.20/249,404.70 = 138,826.60/x
  3. Step 3: Cross multiply
    165,860.20x = 249,404.70 × 138,826.60
  4. Step 4: Simplify right side
    165,860.20x = 34,624,006,525.02
  5. Step 5: Solve for x
    x = 34,624,006,525.02/165,860.20
  6. Step 6: Final answer
    x = 208,754.16

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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.