Home / 116,919.45-161,330.94-65,929.95

Finding the Fourth Proportional to 116,919.45, 161,330.94 and 65,929.95

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Solution

The fourth proportional to 116,919.45, 161,330.94 and 65,929.95 is: 90,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,919.45 : 161,330.94 = 65,929.95 : x
  2. Step 2: Convert to fraction form
    116,919.45/161,330.94 = 65,929.95/x
  3. Step 3: Cross multiply
    116,919.45x = 161,330.94 × 65,929.95
  4. Step 4: Simplify right side
    116,919.45x = 10,636,540,807.65
  5. Step 5: Solve for x
    x = 10,636,540,807.65/116,919.45
  6. Step 6: Final answer
    x = 90,973.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.