Home / 172,742.22-238,275.15-118,933.77

Finding the Fourth Proportional to 172,742.22, 238,275.15 and 118,933.77

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Solution

The fourth proportional to 172,742.22, 238,275.15 and 118,933.77 is: 164,053.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,742.22 : 238,275.15 = 118,933.77 : x
  2. Step 2: Convert to fraction form
    172,742.22/238,275.15 = 118,933.77/x
  3. Step 3: Cross multiply
    172,742.22x = 238,275.15 × 118,933.77
  4. Step 4: Simplify right side
    172,742.22x = 28,338,961,886.82
  5. Step 5: Solve for x
    x = 28,338,961,886.82/172,742.22
  6. Step 6: Final answer
    x = 164,053.48

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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.