Home / 156,741.56-235,080.91-76,745.06

Finding the Fourth Proportional to 156,741.56, 235,080.91 and 76,745.06

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Solution

The fourth proportional to 156,741.56, 235,080.91 and 76,745.06 is: 115,102.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,741.56 : 235,080.91 = 76,745.06 : x
  2. Step 2: Convert to fraction form
    156,741.56/235,080.91 = 76,745.06/x
  3. Step 3: Cross multiply
    156,741.56x = 235,080.91 × 76,745.06
  4. Step 4: Simplify right side
    156,741.56x = 18,041,298,159.08
  5. Step 5: Solve for x
    x = 18,041,298,159.08/156,741.56
  6. Step 6: Final answer
    x = 115,102.20

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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.