Home / 235,741.16-325,320.36-128,311.04

Finding the Fourth Proportional to 235,741.16, 325,320.36 and 128,311.04

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Solution

The fourth proportional to 235,741.16, 325,320.36 and 128,311.04 is: 177,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,741.16 : 325,320.36 = 128,311.04 : x
  2. Step 2: Convert to fraction form
    235,741.16/325,320.36 = 128,311.04/x
  3. Step 3: Cross multiply
    235,741.16x = 325,320.36 × 128,311.04
  4. Step 4: Simplify right side
    235,741.16x = 41,742,193,724.77
  5. Step 5: Solve for x
    x = 41,742,193,724.77/235,741.16
  6. Step 6: Final answer
    x = 177,067.91

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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.