Home / 143,863.51-198,532.50-83,470.12

Finding the Fourth Proportional to 143,863.51, 198,532.50 and 83,470.12

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Solution

The fourth proportional to 143,863.51, 198,532.50 and 83,470.12 is: 115,189.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,863.51 : 198,532.50 = 83,470.12 : x
  2. Step 2: Convert to fraction form
    143,863.51/198,532.50 = 83,470.12/x
  3. Step 3: Cross multiply
    143,863.51x = 198,532.50 × 83,470.12
  4. Step 4: Simplify right side
    143,863.51x = 16,571,531,598.90
  5. Step 5: Solve for x
    x = 16,571,531,598.90/143,863.51
  6. Step 6: Final answer
    x = 115,189.26

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1.5x scale

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.