Home / 149,746.52-206,648.60-81,763.28

Finding the Fourth Proportional to 149,746.52, 206,648.60 and 81,763.28

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Solution

The fourth proportional to 149,746.52, 206,648.60 and 81,763.28 is: 112,832.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,746.52 : 206,648.60 = 81,763.28 : x
  2. Step 2: Convert to fraction form
    149,746.52/206,648.60 = 81,763.28/x
  3. Step 3: Cross multiply
    149,746.52x = 206,648.60 × 81,763.28
  4. Step 4: Simplify right side
    149,746.52x = 16,896,266,514.57
  5. Step 5: Solve for x
    x = 16,896,266,514.57/149,746.52
  6. Step 6: Final answer
    x = 112,832.45

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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.