Home / 128,651.20-193,005.16-43,259.14

Finding the Fourth Proportional to 128,651.20, 193,005.16 and 43,259.14

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Solution

The fourth proportional to 128,651.20, 193,005.16 and 43,259.14 is: 64,898.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,651.20 : 193,005.16 = 43,259.14 : x
  2. Step 2: Convert to fraction form
    128,651.20/193,005.16 = 43,259.14/x
  3. Step 3: Cross multiply
    128,651.20x = 193,005.16 × 43,259.14
  4. Step 4: Simplify right side
    128,651.20x = 8,349,237,237.16
  5. Step 5: Solve for x
    x = 8,349,237,237.16/128,651.20
  6. Step 6: Final answer
    x = 64,898.25

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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.