Home / 139,977.79-209,970.33-40,133.95

Finding the Fourth Proportional to 139,977.79, 209,970.33 and 40,133.95

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Solution

The fourth proportional to 139,977.79, 209,970.33 and 40,133.95 is: 60,201.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,977.79 : 209,970.33 = 40,133.95 : x
  2. Step 2: Convert to fraction form
    139,977.79/209,970.33 = 40,133.95/x
  3. Step 3: Cross multiply
    139,977.79x = 209,970.33 × 40,133.95
  4. Step 4: Simplify right side
    139,977.79x = 8,426,938,725.70
  5. Step 5: Solve for x
    x = 8,426,938,725.70/139,977.79
  6. Step 6: Final answer
    x = 60,201.97

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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.