Home / 125,183.68-172,659.30-86,943.27

Finding the Fourth Proportional to 125,183.68, 172,659.30 and 86,943.27

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Solution

The fourth proportional to 125,183.68, 172,659.30 and 86,943.27 is: 119,916.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,183.68 : 172,659.30 = 86,943.27 : x
  2. Step 2: Convert to fraction form
    125,183.68/172,659.30 = 86,943.27/x
  3. Step 3: Cross multiply
    125,183.68x = 172,659.30 × 86,943.27
  4. Step 4: Simplify right side
    125,183.68x = 15,011,564,459.35
  5. Step 5: Solve for x
    x = 15,011,564,459.35/125,183.68
  6. Step 6: Final answer
    x = 119,916.31

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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.