Home / 207,931.67-286,945.35-117,287.36

Finding the Fourth Proportional to 207,931.67, 286,945.35 and 117,287.36

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Solution

The fourth proportional to 207,931.67, 286,945.35 and 117,287.36 is: 161,856.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,931.67 : 286,945.35 = 117,287.36 : x
  2. Step 2: Convert to fraction form
    207,931.67/286,945.35 = 117,287.36/x
  3. Step 3: Cross multiply
    207,931.67x = 286,945.35 × 117,287.36
  4. Step 4: Simplify right side
    207,931.67x = 33,655,062,565.78
  5. Step 5: Solve for x
    x = 33,655,062,565.78/207,931.67
  6. Step 6: Final answer
    x = 161,856.36

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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.