Home / 97,020.45-133,816.05-85,669.92

Finding the Fourth Proportional to 97,020.45, 133,816.05 and 85,669.92

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Solution

The fourth proportional to 97,020.45, 133,816.05 and 85,669.92 is: 118,160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,020.45 : 133,816.05 = 85,669.92 : x
  2. Step 2: Convert to fraction form
    97,020.45/133,816.05 = 85,669.92/x
  3. Step 3: Cross multiply
    97,020.45x = 133,816.05 × 85,669.92
  4. Step 4: Simplify right side
    97,020.45x = 11,464,010,298.22
  5. Step 5: Solve for x
    x = 11,464,010,298.22/97,020.45
  6. Step 6: Final answer
    x = 118,160.76

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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.