Home / 105,108.25-145,052.46-57,364.66

Finding the Fourth Proportional to 105,108.25, 145,052.46 and 57,364.66

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Solution

The fourth proportional to 105,108.25, 145,052.46 and 57,364.66 is: 79,164.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,108.25 : 145,052.46 = 57,364.66 : x
  2. Step 2: Convert to fraction form
    105,108.25/145,052.46 = 57,364.66/x
  3. Step 3: Cross multiply
    105,108.25x = 145,052.46 × 57,364.66
  4. Step 4: Simplify right side
    105,108.25x = 8,320,885,050.06
  5. Step 5: Solve for x
    x = 8,320,885,050.06/105,108.25
  6. Step 6: Final answer
    x = 79,164.91

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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.