Home / 105,409.92-158,173.20-43,124.16

Finding the Fourth Proportional to 105,409.92, 158,173.20 and 43,124.16

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Solution

The fourth proportional to 105,409.92, 158,173.20 and 43,124.16 is: 64,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,409.92 : 158,173.20 = 43,124.16 : x
  2. Step 2: Convert to fraction form
    105,409.92/158,173.20 = 43,124.16/x
  3. Step 3: Cross multiply
    105,409.92x = 158,173.20 × 43,124.16
  4. Step 4: Simplify right side
    105,409.92x = 6,821,086,384.51
  5. Step 5: Solve for x
    x = 6,821,086,384.51/105,409.92
  6. Step 6: Final answer
    x = 64,710.10

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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.