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Finding the Fourth Proportional to 126,443.93, 174,492.47 and 72,727.56

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Solution

The fourth proportional to 126,443.93, 174,492.47 and 72,727.56 is: 100,363.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,443.93 : 174,492.47 = 72,727.56 : x
  2. Step 2: Convert to fraction form
    126,443.93/174,492.47 = 72,727.56/x
  3. Step 3: Cross multiply
    126,443.93x = 174,492.47 × 72,727.56
  4. Step 4: Simplify right side
    126,443.93x = 12,690,411,217.84
  5. Step 5: Solve for x
    x = 12,690,411,217.84/126,443.93
  6. Step 6: Final answer
    x = 100,363.95

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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.