Home / 207,913.31-286,903.87-117,240.29

Finding the Fourth Proportional to 207,913.31, 286,903.87 and 117,240.29

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Solution

The fourth proportional to 207,913.31, 286,903.87 and 117,240.29 is: 161,782.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,913.31 : 286,903.87 = 117,240.29 : x
  2. Step 2: Convert to fraction form
    207,913.31/286,903.87 = 117,240.29/x
  3. Step 3: Cross multiply
    207,913.31x = 286,903.87 × 117,240.29
  4. Step 4: Simplify right side
    207,913.31x = 33,636,692,920.92
  5. Step 5: Solve for x
    x = 33,636,692,920.92/207,913.31
  6. Step 6: Final answer
    x = 161,782.30

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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.