Home / 143,832.31-198,464.88-83,378.19

Finding the Fourth Proportional to 143,832.31, 198,464.88 and 83,378.19

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Solution

The fourth proportional to 143,832.31, 198,464.88 and 83,378.19 is: 115,048.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,832.31 : 198,464.88 = 83,378.19 : x
  2. Step 2: Convert to fraction form
    143,832.31/198,464.88 = 83,378.19/x
  3. Step 3: Cross multiply
    143,832.31x = 198,464.88 × 83,378.19
  4. Step 4: Simplify right side
    143,832.31x = 16,547,642,472.97
  5. Step 5: Solve for x
    x = 16,547,642,472.97/143,832.31
  6. Step 6: Final answer
    x = 115,048.16

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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.