Home / 106,514,971.20-159,772,456.80-84,991,610.70

Finding the Fourth Proportional to 106,514,971.20, 159,772,456.80 and 84,991,610.70

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Solution

The fourth proportional to 106,514,971.20, 159,772,456.80 and 84,991,610.70 is: 127,487,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,514,971.20 : 159,772,456.80 = 84,991,610.70 : x
  2. Step 2: Convert to fraction form
    106,514,971.20/159,772,456.80 = 84,991,610.70/x
  3. Step 3: Cross multiply
    106,514,971.20x = 159,772,456.80 × 84,991,610.70
  4. Step 4: Simplify right side
    106,514,971.20x = 13,579,318,448,928,170
  5. Step 5: Solve for x
    x = 13,579,318,448,928,170/106,514,971.20
  6. Step 6: Final answer
    x = 127,487,416.05

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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.