Home / 149,543.31-206,368.97-81,559.00

Finding the Fourth Proportional to 149,543.31, 206,368.97 and 81,559.00

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Solution

The fourth proportional to 149,543.31, 206,368.97 and 81,559.00 is: 112,550.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,543.31 : 206,368.97 = 81,559.00 : x
  2. Step 2: Convert to fraction form
    149,543.31/206,368.97 = 81,559.00/x
  3. Step 3: Cross multiply
    149,543.31x = 206,368.97 × 81,559.00
  4. Step 4: Simplify right side
    149,543.31x = 16,831,246,674.40
  5. Step 5: Solve for x
    x = 16,831,246,674.40/149,543.31
  6. Step 6: Final answer
    x = 112,550.98

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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.