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Finding the Fourth Proportional to 149,248.89, 205,962.21 and 84,730.50

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Solution

The fourth proportional to 149,248.89, 205,962.21 and 84,730.50 is: 116,927.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,248.89 : 205,962.21 = 84,730.50 : x
  2. Step 2: Convert to fraction form
    149,248.89/205,962.21 = 84,730.50/x
  3. Step 3: Cross multiply
    149,248.89x = 205,962.21 × 84,730.50
  4. Step 4: Simplify right side
    149,248.89x = 17,451,281,034.41
  5. Step 5: Solve for x
    x = 17,451,281,034.41/149,248.89
  6. Step 6: Final answer
    x = 116,927.38

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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.