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Finding the Fourth Proportional to 140,556.33, 210,862.71 and 51,810.30

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Solution

The fourth proportional to 140,556.33, 210,862.71 and 51,810.30 is: 77,725.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,556.33 : 210,862.71 = 51,810.30 : x
  2. Step 2: Convert to fraction form
    140,556.33/210,862.71 = 51,810.30/x
  3. Step 3: Cross multiply
    140,556.33x = 210,862.71 × 51,810.30
  4. Step 4: Simplify right side
    140,556.33x = 10,924,860,263.91
  5. Step 5: Solve for x
    x = 10,924,860,263.91/140,556.33
  6. Step 6: Final answer
    x = 77,725.85

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1.5x scale

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.