Home / 166,800.09-249,907.32-138,899.64

Finding the Fourth Proportional to 166,800.09, 249,907.32 and 138,899.64

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Solution

The fourth proportional to 166,800.09, 249,907.32 and 138,899.64 is: 208,105.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,800.09 : 249,907.32 = 138,899.64 : x
  2. Step 2: Convert to fraction form
    166,800.09/249,907.32 = 138,899.64/x
  3. Step 3: Cross multiply
    166,800.09x = 249,907.32 × 138,899.64
  4. Step 4: Simplify right side
    166,800.09x = 34,712,036,781.36
  5. Step 5: Solve for x
    x = 34,712,036,781.36/166,800.09
  6. Step 6: Final answer
    x = 208,105.62

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1.5x scale

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.