Home / 171,983.15-257,856.96-87,579.93

Finding the Fourth Proportional to 171,983.15, 257,856.96 and 87,579.93

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Solution

The fourth proportional to 171,983.15, 257,856.96 and 87,579.93 is: 131,309.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,983.15 : 257,856.96 = 87,579.93 : x
  2. Step 2: Convert to fraction form
    171,983.15/257,856.96 = 87,579.93/x
  3. Step 3: Cross multiply
    171,983.15x = 257,856.96 × 87,579.93
  4. Step 4: Simplify right side
    171,983.15x = 22,583,094,506.81
  5. Step 5: Solve for x
    x = 22,583,094,506.81/171,983.15
  6. Step 6: Final answer
    x = 131,309.92

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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.