Home / 207,788.46-286,726.14-117,142.17

Finding the Fourth Proportional to 207,788.46, 286,726.14 and 117,142.17

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Solution

The fourth proportional to 207,788.46, 286,726.14 and 117,142.17 is: 161,643.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,788.46 : 286,726.14 = 117,142.17 : x
  2. Step 2: Convert to fraction form
    207,788.46/286,726.14 = 117,142.17/x
  3. Step 3: Cross multiply
    207,788.46x = 286,726.14 × 117,142.17
  4. Step 4: Simplify right side
    207,788.46x = 33,587,722,235.32
  5. Step 5: Solve for x
    x = 33,587,722,235.32/207,788.46
  6. Step 6: Final answer
    x = 161,643.83

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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.