Home / 96,996.48-145,518.95-77,081.28

Finding the Fourth Proportional to 96,996.48, 145,518.95 and 77,081.28

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Solution

The fourth proportional to 96,996.48, 145,518.95 and 77,081.28 is: 115,641.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,996.48 : 145,518.95 = 77,081.28 : x
  2. Step 2: Convert to fraction form
    96,996.48/145,518.95 = 77,081.28/x
  3. Step 3: Cross multiply
    96,996.48x = 145,518.95 × 77,081.28
  4. Step 4: Simplify right side
    96,996.48x = 11,216,786,930.26
  5. Step 5: Solve for x
    x = 11,216,786,930.26/96,996.48
  6. Step 6: Final answer
    x = 115,641.18

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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.