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Finding the Fourth Proportional to 249,121.05, 373,635.01 and 66,754

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Solution

The fourth proportional to 249,121.05, 373,635.01 and 66,754 is: 100,118.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,121.05 : 373,635.01 = 66,754 : x
  2. Step 2: Convert to fraction form
    249,121.05/373,635.01 = 66,754/x
  3. Step 3: Cross multiply
    249,121.05x = 373,635.01 × 66,754
  4. Step 4: Simplify right side
    249,121.05x = 24,941,631,457.54
  5. Step 5: Solve for x
    x = 24,941,631,457.54/249,121.05
  6. Step 6: Final answer
    x = 100,118.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.