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Finding the Fourth Proportional to 169,985.86, 254,987.90 and 43,627.21

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Solution

The fourth proportional to 169,985.86, 254,987.90 and 43,627.21 is: 65,443.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,985.86 : 254,987.90 = 43,627.21 : x
  2. Step 2: Convert to fraction form
    169,985.86/254,987.90 = 43,627.21/x
  3. Step 3: Cross multiply
    169,985.86x = 254,987.90 × 43,627.21
  4. Step 4: Simplify right side
    169,985.86x = 11,124,409,968.76
  5. Step 5: Solve for x
    x = 11,124,409,968.76/169,985.86
  6. Step 6: Final answer
    x = 65,443.15

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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.