Home / 123,668.10-185,516.93-43,689.51

Finding the Fourth Proportional to 123,668.10, 185,516.93 and 43,689.51

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Solution

The fourth proportional to 123,668.10, 185,516.93 and 43,689.51 is: 65,539.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,668.10 : 185,516.93 = 43,689.51 : x
  2. Step 2: Convert to fraction form
    123,668.10/185,516.93 = 43,689.51/x
  3. Step 3: Cross multiply
    123,668.10x = 185,516.93 × 43,689.51
  4. Step 4: Simplify right side
    123,668.10x = 8,105,143,877.63
  5. Step 5: Solve for x
    x = 8,105,143,877.63/123,668.10
  6. Step 6: Final answer
    x = 65,539.49

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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.