Home / 143,483.45-197,953.67-89,748.05

Finding the Fourth Proportional to 143,483.45, 197,953.67 and 89,748.05

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Solution

The fourth proportional to 143,483.45, 197,953.67 and 89,748.05 is: 123,818.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,483.45 : 197,953.67 = 89,748.05 : x
  2. Step 2: Convert to fraction form
    143,483.45/197,953.67 = 89,748.05/x
  3. Step 3: Cross multiply
    143,483.45x = 197,953.67 × 89,748.05
  4. Step 4: Simplify right side
    143,483.45x = 17,765,955,107.45
  5. Step 5: Solve for x
    x = 17,765,955,107.45/143,483.45
  6. Step 6: Final answer
    x = 123,818.85

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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.