Home / 149,746.32-206,648.36-81,763.08

Finding the Fourth Proportional to 149,746.32, 206,648.36 and 81,763.08

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Solution

The fourth proportional to 149,746.32, 206,648.36 and 81,763.08 is: 112,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,746.32 : 206,648.36 = 81,763.08 : x
  2. Step 2: Convert to fraction form
    149,746.32/206,648.36 = 81,763.08/x
  3. Step 3: Cross multiply
    149,746.32x = 206,648.36 × 81,763.08
  4. Step 4: Simplify right side
    149,746.32x = 16,896,206,390.55
  5. Step 5: Solve for x
    x = 16,896,206,390.55/149,746.32
  6. Step 6: Final answer
    x = 112,832.20

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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.