Home / 170,037.10-255,055.65-139,969.90

Finding the Fourth Proportional to 170,037.10, 255,055.65 and 139,969.90

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Solution

The fourth proportional to 170,037.10, 255,055.65 and 139,969.90 is: 209,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,037.10 : 255,055.65 = 139,969.90 : x
  2. Step 2: Convert to fraction form
    170,037.10/255,055.65 = 139,969.90/x
  3. Step 3: Cross multiply
    170,037.10x = 255,055.65 × 139,969.90
  4. Step 4: Simplify right side
    170,037.10x = 35,700,113,824.94
  5. Step 5: Solve for x
    x = 35,700,113,824.94/170,037.10
  6. Step 6: Final answer
    x = 209,954.85

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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.