Home / 245,984.45-368,830.87-85,983.53

Finding the Fourth Proportional to 245,984.45, 368,830.87 and 85,983.53

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Solution

The fourth proportional to 245,984.45, 368,830.87 and 85,983.53 is: 128,924.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,984.45 : 368,830.87 = 85,983.53 : x
  2. Step 2: Convert to fraction form
    245,984.45/368,830.87 = 85,983.53/x
  3. Step 3: Cross multiply
    245,984.45x = 368,830.87 × 85,983.53
  4. Step 4: Simplify right side
    245,984.45x = 31,713,378,116.46
  5. Step 5: Solve for x
    x = 31,713,378,116.46/245,984.45
  6. Step 6: Final answer
    x = 128,924.32

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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.