Home / 105,821.37-146,037.02-58,077.32

Finding the Fourth Proportional to 105,821.37, 146,037.02 and 58,077.32

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Solution

The fourth proportional to 105,821.37, 146,037.02 and 58,077.32 is: 80,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,821.37 : 146,037.02 = 58,077.32 : x
  2. Step 2: Convert to fraction form
    105,821.37/146,037.02 = 58,077.32/x
  3. Step 3: Cross multiply
    105,821.37x = 146,037.02 × 58,077.32
  4. Step 4: Simplify right side
    105,821.37x = 8,481,437,721.81
  5. Step 5: Solve for x
    x = 8,481,437,721.81/105,821.37
  6. Step 6: Final answer
    x = 80,148.63

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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.