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Finding the Fourth Proportional to 104,636.90, 144,404.82 and 56,889.23

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Solution

The fourth proportional to 104,636.90, 144,404.82 and 56,889.23 is: 78,510.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,636.90 : 144,404.82 = 56,889.23 : x
  2. Step 2: Convert to fraction form
    104,636.90/144,404.82 = 56,889.23/x
  3. Step 3: Cross multiply
    104,636.90x = 144,404.82 × 56,889.23
  4. Step 4: Simplify right side
    104,636.90x = 8,215,078,296.06
  5. Step 5: Solve for x
    x = 8,215,078,296.06/104,636.90
  6. Step 6: Final answer
    x = 78,510.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.