Home / 105,108.13-145,052.29-57,364.54

Finding the Fourth Proportional to 105,108.13, 145,052.29 and 57,364.54

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Solution

The fourth proportional to 105,108.13, 145,052.29 and 57,364.54 is: 79,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,108.13 : 145,052.29 = 57,364.54 : x
  2. Step 2: Convert to fraction form
    105,108.13/145,052.29 = 57,364.54/x
  3. Step 3: Cross multiply
    105,108.13x = 145,052.29 × 57,364.54
  4. Step 4: Simplify right side
    105,108.13x = 8,320,857,166.54
  5. Step 5: Solve for x
    x = 8,320,857,166.54/105,108.13
  6. Step 6: Final answer
    x = 79,164.74

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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.