Home / 159,025.32-219,457.76-87,405.12

Finding the Fourth Proportional to 159,025.32, 219,457.76 and 87,405.12

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Solution

The fourth proportional to 159,025.32, 219,457.76 and 87,405.12 is: 120,620.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,025.32 : 219,457.76 = 87,405.12 : x
  2. Step 2: Convert to fraction form
    159,025.32/219,457.76 = 87,405.12/x
  3. Step 3: Cross multiply
    159,025.32x = 219,457.76 × 87,405.12
  4. Step 4: Simplify right side
    159,025.32x = 19,181,731,410.71
  5. Step 5: Solve for x
    x = 19,181,731,410.71/159,025.32
  6. Step 6: Final answer
    x = 120,620.61

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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.