Home / 143,718.36-198,337.47-80,056.20

Finding the Fourth Proportional to 143,718.36, 198,337.47 and 80,056.20

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Solution

The fourth proportional to 143,718.36, 198,337.47 and 80,056.20 is: 110,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,718.36 : 198,337.47 = 80,056.20 : x
  2. Step 2: Convert to fraction form
    143,718.36/198,337.47 = 80,056.20/x
  3. Step 3: Cross multiply
    143,718.36x = 198,337.47 × 80,056.20
  4. Step 4: Simplify right side
    143,718.36x = 15,878,144,165.81
  5. Step 5: Solve for x
    x = 15,878,144,165.81/143,718.36
  6. Step 6: Final answer
    x = 110,480.97

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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.