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Finding the Fourth Proportional to 104,649.39, 144,796.47 and 91,248.57

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Solution

The fourth proportional to 104,649.39, 144,796.47 and 91,248.57 is: 126,254.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,649.39 : 144,796.47 = 91,248.57 : x
  2. Step 2: Convert to fraction form
    104,649.39/144,796.47 = 91,248.57/x
  3. Step 3: Cross multiply
    104,649.39x = 144,796.47 × 91,248.57
  4. Step 4: Simplify right side
    104,649.39x = 13,212,470,828.55
  5. Step 5: Solve for x
    x = 13,212,470,828.55/104,649.39
  6. Step 6: Final answer
    x = 126,254.64

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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.