Home / 156,015.32-215,300.84-84,395.32

Finding the Fourth Proportional to 156,015.32, 215,300.84 and 84,395.32

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Solution

The fourth proportional to 156,015.32, 215,300.84 and 84,395.32 is: 116,465.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,015.32 : 215,300.84 = 84,395.32 : x
  2. Step 2: Convert to fraction form
    156,015.32/215,300.84 = 84,395.32/x
  3. Step 3: Cross multiply
    156,015.32x = 215,300.84 × 84,395.32
  4. Step 4: Simplify right side
    156,015.32x = 18,170,382,327.84
  5. Step 5: Solve for x
    x = 18,170,382,327.84/156,015.32
  6. Step 6: Final answer
    x = 116,465.38

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1.5x scale

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.