Home / 156,786.30-235,288.80-100,762.65

Finding the Fourth Proportional to 156,786.30, 235,288.80 and 100,762.65

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Solution

The fourth proportional to 156,786.30, 235,288.80 and 100,762.65 is: 151,214.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,786.30 : 235,288.80 = 100,762.65 : x
  2. Step 2: Convert to fraction form
    156,786.30/235,288.80 = 100,762.65/x
  3. Step 3: Cross multiply
    156,786.30x = 235,288.80 × 100,762.65
  4. Step 4: Simplify right side
    156,786.30x = 23,708,323,003.32
  5. Step 5: Solve for x
    x = 23,708,323,003.32/156,786.30
  6. Step 6: Final answer
    x = 151,214.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.