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Finding the Fourth Proportional to 162,615.48, 243,921.82 and 127,106.63

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Solution

The fourth proportional to 162,615.48, 243,921.82 and 127,106.63 is: 190,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,615.48 : 243,921.82 = 127,106.63 : x
  2. Step 2: Convert to fraction form
    162,615.48/243,921.82 = 127,106.63/x
  3. Step 3: Cross multiply
    162,615.48x = 243,921.82 × 127,106.63
  4. Step 4: Simplify right side
    162,615.48x = 31,004,080,523.67
  5. Step 5: Solve for x
    x = 31,004,080,523.67/162,615.48
  6. Step 6: Final answer
    x = 190,658.85

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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.