Home / 156,741.09-235,080.18-76,744.58

Finding the Fourth Proportional to 156,741.09, 235,080.18 and 76,744.58

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Solution

The fourth proportional to 156,741.09, 235,080.18 and 76,744.58 is: 115,101.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,741.09 : 235,080.18 = 76,744.58 : x
  2. Step 2: Convert to fraction form
    156,741.09/235,080.18 = 76,744.58/x
  3. Step 3: Cross multiply
    156,741.09x = 235,080.18 × 76,744.58
  4. Step 4: Simplify right side
    156,741.09x = 18,041,128,505.02
  5. Step 5: Solve for x
    x = 18,041,128,505.02/156,741.09
  6. Step 6: Final answer
    x = 115,101.46

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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.