Home / 131,112.81-196,640.76-46,878.80

Finding the Fourth Proportional to 131,112.81, 196,640.76 and 46,878.80

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Solution

The fourth proportional to 131,112.81, 196,640.76 and 46,878.80 is: 70,308.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,112.81 : 196,640.76 = 46,878.80 : x
  2. Step 2: Convert to fraction form
    131,112.81/196,640.76 = 46,878.80/x
  3. Step 3: Cross multiply
    131,112.81x = 196,640.76 × 46,878.80
  4. Step 4: Simplify right side
    131,112.81x = 9,218,281,642.29
  5. Step 5: Solve for x
    x = 9,218,281,642.29/131,112.81
  6. Step 6: Final answer
    x = 70,308.02

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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.