Home / 128,083,166.20-176,752,659.36-69,345,361.72

Finding the Fourth Proportional to 128,083,166.20, 176,752,659.36 and 69,345,361.72

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Solution

The fourth proportional to 128,083,166.20, 176,752,659.36 and 69,345,361.72 is: 95,695,456.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,083,166.20 : 176,752,659.36 = 69,345,361.72 : x
  2. Step 2: Convert to fraction form
    128,083,166.20/176,752,659.36 = 69,345,361.72/x
  3. Step 3: Cross multiply
    128,083,166.20x = 176,752,659.36 × 69,345,361.72
  4. Step 4: Simplify right side
    128,083,166.20x = 12,256,977,098,291,144
  5. Step 5: Solve for x
    x = 12,256,977,098,291,144/128,083,166.20
  6. Step 6: Final answer
    x = 95,695,456.80

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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.