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Finding the Fourth Proportional to 104,358, 144,012.96 and 56,610.28

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Solution

The fourth proportional to 104,358, 144,012.96 and 56,610.28 is: 78,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,358 : 144,012.96 = 56,610.28 : x
  2. Step 2: Convert to fraction form
    104,358/144,012.96 = 56,610.28/x
  3. Step 3: Cross multiply
    104,358x = 144,012.96 × 56,610.28
  4. Step 4: Simplify right side
    104,358x = 8,152,613,989.23
  5. Step 5: Solve for x
    x = 8,152,613,989.23/104,358
  6. Step 6: Final answer
    x = 78,121.60

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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.