Home / 156,841.40-235,129.83-68,028

Finding the Fourth Proportional to 156,841.40, 235,129.83 and 68,028

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Solution

The fourth proportional to 156,841.40, 235,129.83 and 68,028 is: 101,984.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,841.40 : 235,129.83 = 68,028 : x
  2. Step 2: Convert to fraction form
    156,841.40/235,129.83 = 68,028/x
  3. Step 3: Cross multiply
    156,841.40x = 235,129.83 × 68,028
  4. Step 4: Simplify right side
    156,841.40x = 15,995,412,075.24
  5. Step 5: Solve for x
    x = 15,995,412,075.24/156,841.40
  6. Step 6: Final answer
    x = 101,984.63

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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.