Home / 190,165.86-262,432.91-104,128.47

Finding the Fourth Proportional to 190,165.86, 262,432.91 and 104,128.47

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Solution

The fourth proportional to 190,165.86, 262,432.91 and 104,128.47 is: 143,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,165.86 : 262,432.91 = 104,128.47 : x
  2. Step 2: Convert to fraction form
    190,165.86/262,432.91 = 104,128.47/x
  3. Step 3: Cross multiply
    190,165.86x = 262,432.91 × 104,128.47
  4. Step 4: Simplify right side
    190,165.86x = 27,326,737,656.27
  5. Step 5: Solve for x
    x = 27,326,737,656.27/190,165.86
  6. Step 6: Final answer
    x = 143,699.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.