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Finding the Fourth Proportional to 104,663.30, 157,031.40 and 45,541.40

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Solution

The fourth proportional to 104,663.30, 157,031.40 and 45,541.40 is: 68,327.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,663.30 : 157,031.40 = 45,541.40 : x
  2. Step 2: Convert to fraction form
    104,663.30/157,031.40 = 45,541.40/x
  3. Step 3: Cross multiply
    104,663.30x = 157,031.40 × 45,541.40
  4. Step 4: Simplify right side
    104,663.30x = 7,151,429,799.96
  5. Step 5: Solve for x
    x = 7,151,429,799.96/104,663.30
  6. Step 6: Final answer
    x = 68,327.96

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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.