Home / 104,969.07-144,909.02-72,728.13

Finding the Fourth Proportional to 104,969.07, 144,909.02 and 72,728.13

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Solution

The fourth proportional to 104,969.07, 144,909.02 and 72,728.13 is: 100,400.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,969.07 : 144,909.02 = 72,728.13 : x
  2. Step 2: Convert to fraction form
    104,969.07/144,909.02 = 72,728.13/x
  3. Step 3: Cross multiply
    104,969.07x = 144,909.02 × 72,728.13
  4. Step 4: Simplify right side
    104,969.07x = 10,538,962,044.73
  5. Step 5: Solve for x
    x = 10,538,962,044.73/104,969.07
  6. Step 6: Final answer
    x = 100,400.64

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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.