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Finding the Fourth Proportional to 126,521, 174,598.98 and 76,230.44

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Solution

The fourth proportional to 126,521, 174,598.98 and 76,230.44 is: 105,198.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,521 : 174,598.98 = 76,230.44 : x
  2. Step 2: Convert to fraction form
    126,521/174,598.98 = 76,230.44/x
  3. Step 3: Cross multiply
    126,521x = 174,598.98 × 76,230.44
  4. Step 4: Simplify right side
    126,521x = 13,309,757,068.95
  5. Step 5: Solve for x
    x = 13,309,757,068.95/126,521
  6. Step 6: Final answer
    x = 105,198.01

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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.