Home / 207,281.28-286,032.42-122,381.94

Finding the Fourth Proportional to 207,281.28, 286,032.42 and 122,381.94

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Solution

The fourth proportional to 207,281.28, 286,032.42 and 122,381.94 is: 168,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,281.28 : 286,032.42 = 122,381.94 : x
  2. Step 2: Convert to fraction form
    207,281.28/286,032.42 = 122,381.94/x
  3. Step 3: Cross multiply
    207,281.28x = 286,032.42 × 122,381.94
  4. Step 4: Simplify right side
    207,281.28x = 35,005,202,462.49
  5. Step 5: Solve for x
    x = 35,005,202,462.49/207,281.28
  6. Step 6: Final answer
    x = 168,877.78

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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.