Home / 106,192.12-159,386.78-53,638.56

Finding the Fourth Proportional to 106,192.12, 159,386.78 and 53,638.56

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Solution

The fourth proportional to 106,192.12, 159,386.78 and 53,638.56 is: 80,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,192.12 : 159,386.78 = 53,638.56 : x
  2. Step 2: Convert to fraction form
    106,192.12/159,386.78 = 53,638.56/x
  3. Step 3: Cross multiply
    106,192.12x = 159,386.78 × 53,638.56
  4. Step 4: Simplify right side
    106,192.12x = 8,549,277,362.24
  5. Step 5: Solve for x
    x = 8,549,277,362.24/106,192.12
  6. Step 6: Final answer
    x = 80,507.64

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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.