Home / 97,935.34-135,080.78-89,894.54

Finding the Fourth Proportional to 97,935.34, 135,080.78 and 89,894.54

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Solution

The fourth proportional to 97,935.34, 135,080.78 and 89,894.54 is: 123,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,935.34 : 135,080.78 = 89,894.54 : x
  2. Step 2: Convert to fraction form
    97,935.34/135,080.78 = 89,894.54/x
  3. Step 3: Cross multiply
    97,935.34x = 135,080.78 × 89,894.54
  4. Step 4: Simplify right side
    97,935.34x = 12,143,024,580.94
  5. Step 5: Solve for x
    x = 12,143,024,580.94/97,935.34
  6. Step 6: Final answer
    x = 123,990.22

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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.