Home / 149,767.07-206,678.93-81,784.58

Finding the Fourth Proportional to 149,767.07, 206,678.93 and 81,784.58

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Solution

The fourth proportional to 149,767.07, 206,678.93 and 81,784.58 is: 112,862.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,767.07 : 206,678.93 = 81,784.58 : x
  2. Step 2: Convert to fraction form
    149,767.07/206,678.93 = 81,784.58/x
  3. Step 3: Cross multiply
    149,767.07x = 206,678.93 × 81,784.58
  4. Step 4: Simplify right side
    149,767.07x = 16,903,148,042.58
  5. Step 5: Solve for x
    x = 16,903,148,042.58/149,767.07
  6. Step 6: Final answer
    x = 112,862.92

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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.