Home / 105,141.87-145,091.66-57,395.16

Finding the Fourth Proportional to 105,141.87, 145,091.66 and 57,395.16

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Solution

The fourth proportional to 105,141.87, 145,091.66 and 57,395.16 is: 79,203.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,141.87 : 145,091.66 = 57,395.16 : x
  2. Step 2: Convert to fraction form
    105,141.87/145,091.66 = 57,395.16/x
  3. Step 3: Cross multiply
    105,141.87x = 145,091.66 × 57,395.16
  4. Step 4: Simplify right side
    105,141.87x = 8,327,558,753.39
  5. Step 5: Solve for x
    x = 8,327,558,753.39/105,141.87
  6. Step 6: Final answer
    x = 79,203.07

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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.