Home / 149,566.79-206,402.81-81,585.24

Finding the Fourth Proportional to 149,566.79, 206,402.81 and 81,585.24

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Solution

The fourth proportional to 149,566.79, 206,402.81 and 81,585.24 is: 112,587.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,566.79 : 206,402.81 = 81,585.24 : x
  2. Step 2: Convert to fraction form
    149,566.79/206,402.81 = 81,585.24/x
  3. Step 3: Cross multiply
    149,566.79x = 206,402.81 × 81,585.24
  4. Step 4: Simplify right side
    149,566.79x = 16,839,422,382.60
  5. Step 5: Solve for x
    x = 16,839,422,382.60/149,566.79
  6. Step 6: Final answer
    x = 112,587.98

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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.