Home / 155,785.32-214,983.85-84,165.32

Finding the Fourth Proportional to 155,785.32, 214,983.85 and 84,165.32

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Solution

The fourth proportional to 155,785.32, 214,983.85 and 84,165.32 is: 116,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,785.32 : 214,983.85 = 84,165.32 : x
  2. Step 2: Convert to fraction form
    155,785.32/214,983.85 = 84,165.32/x
  3. Step 3: Cross multiply
    155,785.32x = 214,983.85 × 84,165.32
  4. Step 4: Simplify right side
    155,785.32x = 18,094,184,530.08
  5. Step 5: Solve for x
    x = 18,094,184,530.08/155,785.32
  6. Step 6: Final answer
    x = 116,148.20

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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.