Home / 143,019.27-197,402.87-97,715.57

Finding the Fourth Proportional to 143,019.27, 197,402.87 and 97,715.57

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Solution

The fourth proportional to 143,019.27, 197,402.87 and 97,715.57 is: 134,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,019.27 : 197,402.87 = 97,715.57 : x
  2. Step 2: Convert to fraction form
    143,019.27/197,402.87 = 97,715.57/x
  3. Step 3: Cross multiply
    143,019.27x = 197,402.87 × 97,715.57
  4. Step 4: Simplify right side
    143,019.27x = 19,289,333,218.96
  5. Step 5: Solve for x
    x = 19,289,333,218.96/143,019.27
  6. Step 6: Final answer
    x = 134,872.27

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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.