Home / 143,253.45-197,628.53-89,501.85

Finding the Fourth Proportional to 143,253.45, 197,628.53 and 89,501.85

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Solution

The fourth proportional to 143,253.45, 197,628.53 and 89,501.85 is: 123,474.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,253.45 : 197,628.53 = 89,501.85 : x
  2. Step 2: Convert to fraction form
    143,253.45/197,628.53 = 89,501.85/x
  3. Step 3: Cross multiply
    143,253.45x = 197,628.53 × 89,501.85
  4. Step 4: Simplify right side
    143,253.45x = 17,688,118,600.27
  5. Step 5: Solve for x
    x = 17,688,118,600.27/143,253.45
  6. Step 6: Final answer
    x = 123,474.29

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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.