Home / 207,931.73-286,945.80-112,438.43

Finding the Fourth Proportional to 207,931.73, 286,945.80 and 112,438.43

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Solution

The fourth proportional to 207,931.73, 286,945.80 and 112,438.43 is: 155,165.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,931.73 : 286,945.80 = 112,438.43 : x
  2. Step 2: Convert to fraction form
    207,931.73/286,945.80 = 112,438.43/x
  3. Step 3: Cross multiply
    207,931.73x = 286,945.80 × 112,438.43
  4. Step 4: Simplify right side
    207,931.73x = 32,263,735,247.09
  5. Step 5: Solve for x
    x = 32,263,735,247.09/207,931.73
  6. Step 6: Final answer
    x = 155,165.04

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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.