Home / 166,850.60-249,979.98-138,605

Finding the Fourth Proportional to 166,850.60, 249,979.98 and 138,605

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Solution

The fourth proportional to 166,850.60, 249,979.98 and 138,605 is: 207,661.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,850.60 : 249,979.98 = 138,605 : x
  2. Step 2: Convert to fraction form
    166,850.60/249,979.98 = 138,605/x
  3. Step 3: Cross multiply
    166,850.60x = 249,979.98 × 138,605
  4. Step 4: Simplify right side
    166,850.60x = 34,648,475,127.90
  5. Step 5: Solve for x
    x = 34,648,475,127.90/166,850.60
  6. Step 6: Final answer
    x = 207,661.68

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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.