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Finding the Fourth Proportional to 148,411.67, 204,818.34 and 90,291.08

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Solution

The fourth proportional to 148,411.67, 204,818.34 and 90,291.08 is: 124,607.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,411.67 : 204,818.34 = 90,291.08 : x
  2. Step 2: Convert to fraction form
    148,411.67/204,818.34 = 90,291.08/x
  3. Step 3: Cross multiply
    148,411.67x = 204,818.34 × 90,291.08
  4. Step 4: Simplify right side
    148,411.67x = 18,493,268,567.00
  5. Step 5: Solve for x
    x = 18,493,268,567.00/148,411.67
  6. Step 6: Final answer
    x = 124,607.91

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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.