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Finding the Fourth Proportional to 104,955.82, 144,737.28 and 66,647.80

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Solution

The fourth proportional to 104,955.82, 144,737.28 and 66,647.80 is: 91,909.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,955.82 : 144,737.28 = 66,647.80 : x
  2. Step 2: Convert to fraction form
    104,955.82/144,737.28 = 66,647.80/x
  3. Step 3: Cross multiply
    104,955.82x = 144,737.28 × 66,647.80
  4. Step 4: Simplify right side
    104,955.82x = 9,646,421,289.98
  5. Step 5: Solve for x
    x = 9,646,421,289.98/104,955.82
  6. Step 6: Final answer
    x = 91,909.35

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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.