Home / 138,832.43-191,445.55-118,755.77

Finding the Fourth Proportional to 138,832.43, 191,445.55 and 118,755.77

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Solution

The fourth proportional to 138,832.43, 191,445.55 and 118,755.77 is: 163,760.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,832.43 : 191,445.55 = 118,755.77 : x
  2. Step 2: Convert to fraction form
    138,832.43/191,445.55 = 118,755.77/x
  3. Step 3: Cross multiply
    138,832.43x = 191,445.55 × 118,755.77
  4. Step 4: Simplify right side
    138,832.43x = 22,735,262,449.21
  5. Step 5: Solve for x
    x = 22,735,262,449.21/138,832.43
  6. Step 6: Final answer
    x = 163,760.46

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1.5x scale

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.