Home / 124,654,625.78-172,020,383.03-68,136,835.55

Finding the Fourth Proportional to 124,654,625.78, 172,020,383.03 and 68,136,835.55

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Solution

The fourth proportional to 124,654,625.78, 172,020,383.03 and 68,136,835.55 is: 94,027,192.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,654,625.78 : 172,020,383.03 = 68,136,835.55 : x
  2. Step 2: Convert to fraction form
    124,654,625.78/172,020,383.03 = 68,136,835.55/x
  3. Step 3: Cross multiply
    124,654,625.78x = 172,020,383.03 × 68,136,835.55
  4. Step 4: Simplify right side
    124,654,625.78x = 11,720,924,548,562,336
  5. Step 5: Solve for x
    x = 11,720,924,548,562,336/124,654,625.78
  6. Step 6: Final answer
    x = 94,027,192.94

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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.