Home / 120,983.08-166,916.74-73,218.28

Finding the Fourth Proportional to 120,983.08, 166,916.74 and 73,218.28

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Solution

The fourth proportional to 120,983.08, 166,916.74 and 73,218.28 is: 101,017.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,983.08 : 166,916.74 = 73,218.28 : x
  2. Step 2: Convert to fraction form
    120,983.08/166,916.74 = 73,218.28/x
  3. Step 3: Cross multiply
    120,983.08x = 166,916.74 × 73,218.28
  4. Step 4: Simplify right side
    120,983.08x = 12,221,356,606.01
  5. Step 5: Solve for x
    x = 12,221,356,606.01/120,983.08
  6. Step 6: Final answer
    x = 101,017.07

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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.