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Finding the Fourth Proportional to 104,602.71, 144,421.26 and 80,360.50

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Solution

The fourth proportional to 104,602.71, 144,421.26 and 80,360.50 is: 110,950.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,602.71 : 144,421.26 = 80,360.50 : x
  2. Step 2: Convert to fraction form
    104,602.71/144,421.26 = 80,360.50/x
  3. Step 3: Cross multiply
    104,602.71x = 144,421.26 × 80,360.50
  4. Step 4: Simplify right side
    104,602.71x = 11,605,763,540.32
  5. Step 5: Solve for x
    x = 11,605,763,540.32/104,602.71
  6. Step 6: Final answer
    x = 110,950.89

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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.