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Finding the Fourth Proportional to 169,714.61, 254,184.40 and 81,030.39

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Solution

The fourth proportional to 169,714.61, 254,184.40 and 81,030.39 is: 121,360.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,714.61 : 254,184.40 = 81,030.39 : x
  2. Step 2: Convert to fraction form
    169,714.61/254,184.40 = 81,030.39/x
  3. Step 3: Cross multiply
    169,714.61x = 254,184.40 × 81,030.39
  4. Step 4: Simplify right side
    169,714.61x = 20,596,660,861.34
  5. Step 5: Solve for x
    x = 20,596,660,861.34/169,714.61
  6. Step 6: Final answer
    x = 121,360.57

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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.