Home / 105,786.32-145,985.26-58,039.85

Finding the Fourth Proportional to 105,786.32, 145,985.26 and 58,039.85

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Solution

The fourth proportional to 105,786.32, 145,985.26 and 58,039.85 is: 80,095.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,786.32 : 145,985.26 = 58,039.85 : x
  2. Step 2: Convert to fraction form
    105,786.32/145,985.26 = 58,039.85/x
  3. Step 3: Cross multiply
    105,786.32x = 145,985.26 × 58,039.85
  4. Step 4: Simplify right side
    105,786.32x = 8,472,962,812.47
  5. Step 5: Solve for x
    x = 8,472,962,812.47/105,786.32
  6. Step 6: Final answer
    x = 80,095.07

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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.