Home / 149,348.21-206,094.58-81,365.72

Finding the Fourth Proportional to 149,348.21, 206,094.58 and 81,365.72

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Solution

The fourth proportional to 149,348.21, 206,094.58 and 81,365.72 is: 112,281.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,348.21 : 206,094.58 = 81,365.72 : x
  2. Step 2: Convert to fraction form
    149,348.21/206,094.58 = 81,365.72/x
  3. Step 3: Cross multiply
    149,348.21x = 206,094.58 × 81,365.72
  4. Step 4: Simplify right side
    149,348.21x = 16,769,032,655.91
  5. Step 5: Solve for x
    x = 16,769,032,655.91/149,348.21
  6. Step 6: Final answer
    x = 112,281.45

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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.