Home / 143,457.70-197,968.94-98,134.15

Finding the Fourth Proportional to 143,457.70, 197,968.94 and 98,134.15

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Solution

The fourth proportional to 143,457.70, 197,968.94 and 98,134.15 is: 135,423.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,457.70 : 197,968.94 = 98,134.15 : x
  2. Step 2: Convert to fraction form
    143,457.70/197,968.94 = 98,134.15/x
  3. Step 3: Cross multiply
    143,457.70x = 197,968.94 × 98,134.15
  4. Step 4: Simplify right side
    143,457.70x = 19,427,512,988.12
  5. Step 5: Solve for x
    x = 19,427,512,988.12/143,457.70
  6. Step 6: Final answer
    x = 135,423.29

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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.