Home / 207,695.09-286,714.91-121,642.13

Finding the Fourth Proportional to 207,695.09, 286,714.91 and 121,642.13

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Solution

The fourth proportional to 207,695.09, 286,714.91 and 121,642.13 is: 167,922.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,695.09 : 286,714.91 = 121,642.13 : x
  2. Step 2: Convert to fraction form
    207,695.09/286,714.91 = 121,642.13/x
  3. Step 3: Cross multiply
    207,695.09x = 286,714.91 × 121,642.13
  4. Step 4: Simplify right side
    207,695.09x = 34,876,611,746.95
  5. Step 5: Solve for x
    x = 34,876,611,746.95/207,695.09
  6. Step 6: Final answer
    x = 167,922.18

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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.