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Finding the Fourth Proportional to 140,564.88, 210,930.48 and 51,881.04

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Solution

The fourth proportional to 140,564.88, 210,930.48 and 51,881.04 is: 77,852.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,564.88 : 210,930.48 = 51,881.04 : x
  2. Step 2: Convert to fraction form
    140,564.88/210,930.48 = 51,881.04/x
  3. Step 3: Cross multiply
    140,564.88x = 210,930.48 × 51,881.04
  4. Step 4: Simplify right side
    140,564.88x = 10,943,292,670.10
  5. Step 5: Solve for x
    x = 10,943,292,670.10/140,564.88
  6. Step 6: Final answer
    x = 77,852.25

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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.