Home / 157,361.40-217,139.94-89,353.80

Finding the Fourth Proportional to 157,361.40, 217,139.94 and 89,353.80

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Solution

The fourth proportional to 157,361.40, 217,139.94 and 89,353.80 is: 123,297.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,361.40 : 217,139.94 = 89,353.80 : x
  2. Step 2: Convert to fraction form
    157,361.40/217,139.94 = 89,353.80/x
  3. Step 3: Cross multiply
    157,361.40x = 217,139.94 × 89,353.80
  4. Step 4: Simplify right side
    157,361.40x = 19,402,278,770.77
  5. Step 5: Solve for x
    x = 19,402,278,770.77/157,361.40
  6. Step 6: Final answer
    x = 123,297.57

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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.