Home / 156,025.72-215,314.62-84,405.52

Finding the Fourth Proportional to 156,025.72, 215,314.62 and 84,405.52

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Solution

The fourth proportional to 156,025.72, 215,314.62 and 84,405.52 is: 116,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,025.72 : 215,314.62 = 84,405.52 : x
  2. Step 2: Convert to fraction form
    156,025.72/215,314.62 = 84,405.52/x
  3. Step 3: Cross multiply
    156,025.72x = 215,314.62 × 84,405.52
  4. Step 4: Simplify right side
    156,025.72x = 18,173,742,464.70
  5. Step 5: Solve for x
    x = 18,173,742,464.70/156,025.72
  6. Step 6: Final answer
    x = 116,479.15

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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.