Home / 207,741.39-286,705.15-121,772.59

Finding the Fourth Proportional to 207,741.39, 286,705.15 and 121,772.59

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Solution

The fourth proportional to 207,741.39, 286,705.15 and 121,772.59 is: 168,059.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,741.39 : 286,705.15 = 121,772.59 : x
  2. Step 2: Convert to fraction form
    207,741.39/286,705.15 = 121,772.59/x
  3. Step 3: Cross multiply
    207,741.39x = 286,705.15 × 121,772.59
  4. Step 4: Simplify right side
    207,741.39x = 34,912,828,681.84
  5. Step 5: Solve for x
    x = 34,912,828,681.84/207,741.39
  6. Step 6: Final answer
    x = 168,059.09

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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.