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Finding the Fourth Proportional to 182,143.51, 273,149.64 and 76,970.68

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Solution

The fourth proportional to 182,143.51, 273,149.64 and 76,970.68 is: 115,428.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,143.51 : 273,149.64 = 76,970.68 : x
  2. Step 2: Convert to fraction form
    182,143.51/273,149.64 = 76,970.68/x
  3. Step 3: Cross multiply
    182,143.51x = 273,149.64 × 76,970.68
  4. Step 4: Simplify right side
    182,143.51x = 21,024,513,532.56
  5. Step 5: Solve for x
    x = 21,024,513,532.56/182,143.51
  6. Step 6: Final answer
    x = 115,428.29

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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.