Home / 207,931.42-286,938.90-117,286.06

Finding the Fourth Proportional to 207,931.42, 286,938.90 and 117,286.06

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Solution

The fourth proportional to 207,931.42, 286,938.90 and 117,286.06 is: 161,851.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,931.42 : 286,938.90 = 117,286.06 : x
  2. Step 2: Convert to fraction form
    207,931.42/286,938.90 = 117,286.06/x
  3. Step 3: Cross multiply
    207,931.42x = 286,938.90 × 117,286.06
  4. Step 4: Simplify right side
    207,931.42x = 33,653,933,041.73
  5. Step 5: Solve for x
    x = 33,653,933,041.73/207,931.42
  6. Step 6: Final answer
    x = 161,851.12

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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.