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Finding the Fourth Proportional to 104,365.78, 144,024.82 and 56,619.12

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Solution

The fourth proportional to 104,365.78, 144,024.82 and 56,619.12 is: 78,134.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,365.78 : 144,024.82 = 56,619.12 : x
  2. Step 2: Convert to fraction form
    104,365.78/144,024.82 = 56,619.12/x
  3. Step 3: Cross multiply
    104,365.78x = 144,024.82 × 56,619.12
  4. Step 4: Simplify right side
    104,365.78x = 8,154,558,348.04
  5. Step 5: Solve for x
    x = 8,154,558,348.04/104,365.78
  6. Step 6: Final answer
    x = 78,134.41

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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.