Home / 189,370.36-284,252.46-139,506.76

Finding the Fourth Proportional to 189,370.36, 284,252.46 and 139,506.76

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Solution

The fourth proportional to 189,370.36, 284,252.46 and 139,506.76 is: 209,405.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,370.36 : 284,252.46 = 139,506.76 : x
  2. Step 2: Convert to fraction form
    189,370.36/284,252.46 = 139,506.76/x
  3. Step 3: Cross multiply
    189,370.36x = 284,252.46 × 139,506.76
  4. Step 4: Simplify right side
    189,370.36x = 39,655,139,716.63
  5. Step 5: Solve for x
    x = 39,655,139,716.63/189,370.36
  6. Step 6: Final answer
    x = 209,405.21

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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.