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Finding the Fourth Proportional to 105,423.63, 158,201.71 and 55,539.51

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Solution

The fourth proportional to 105,423.63, 158,201.71 and 55,539.51 is: 83,344.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,423.63 : 158,201.71 = 55,539.51 : x
  2. Step 2: Convert to fraction form
    105,423.63/158,201.71 = 55,539.51/x
  3. Step 3: Cross multiply
    105,423.63x = 158,201.71 × 55,539.51
  4. Step 4: Simplify right side
    105,423.63x = 8,786,444,722.46
  5. Step 5: Solve for x
    x = 8,786,444,722.46/105,423.63
  6. Step 6: Final answer
    x = 83,344.17

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1.5x scale

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.