Home / 97,920.48-146,835.36-79,154.40

Finding the Fourth Proportional to 97,920.48, 146,835.36 and 79,154.40

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Solution

The fourth proportional to 97,920.48, 146,835.36 and 79,154.40 is: 118,694.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,920.48 : 146,835.36 = 79,154.40 : x
  2. Step 2: Convert to fraction form
    97,920.48/146,835.36 = 79,154.40/x
  3. Step 3: Cross multiply
    97,920.48x = 146,835.36 × 79,154.40
  4. Step 4: Simplify right side
    97,920.48x = 11,622,664,819.58
  5. Step 5: Solve for x
    x = 11,622,664,819.58/97,920.48
  6. Step 6: Final answer
    x = 118,694.93

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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.