Home / 156,734.67-235,041.84-76,723.28

Finding the Fourth Proportional to 156,734.67, 235,041.84 and 76,723.28

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Solution

The fourth proportional to 156,734.67, 235,041.84 and 76,723.28 is: 115,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,734.67 : 235,041.84 = 76,723.28 : x
  2. Step 2: Convert to fraction form
    156,734.67/235,041.84 = 76,723.28/x
  3. Step 3: Cross multiply
    156,734.67x = 235,041.84 × 76,723.28
  4. Step 4: Simplify right side
    156,734.67x = 18,033,180,902.04
  5. Step 5: Solve for x
    x = 18,033,180,902.04/156,734.67
  6. Step 6: Final answer
    x = 115,055.47

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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.