Home / 105,412.52-158,117.92-43,039.28

Finding the Fourth Proportional to 105,412.52, 158,117.92 and 43,039.28

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Solution

The fourth proportional to 105,412.52, 158,117.92 and 43,039.28 is: 64,558.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,412.52 : 158,117.92 = 43,039.28 : x
  2. Step 2: Convert to fraction form
    105,412.52/158,117.92 = 43,039.28/x
  3. Step 3: Cross multiply
    105,412.52x = 158,117.92 × 43,039.28
  4. Step 4: Simplify right side
    105,412.52x = 6,805,281,431.90
  5. Step 5: Solve for x
    x = 6,805,281,431.90/105,412.52
  6. Step 6: Final answer
    x = 64,558.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.