Home / 97,330.40-145,984.80-79,769.60

Finding the Fourth Proportional to 97,330.40, 145,984.80 and 79,769.60

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Solution

The fourth proportional to 97,330.40, 145,984.80 and 79,769.60 is: 119,645.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,330.40 : 145,984.80 = 79,769.60 : x
  2. Step 2: Convert to fraction form
    97,330.40/145,984.80 = 79,769.60/x
  3. Step 3: Cross multiply
    97,330.40x = 145,984.80 × 79,769.60
  4. Step 4: Simplify right side
    97,330.40x = 11,645,149,102.08
  5. Step 5: Solve for x
    x = 11,645,149,102.08/97,330.40
  6. Step 6: Final answer
    x = 119,645.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.