Home / 157,096.80-216,815.81-89,130.60

Finding the Fourth Proportional to 157,096.80, 216,815.81 and 89,130.60

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Solution

The fourth proportional to 157,096.80, 216,815.81 and 89,130.60 is: 123,012.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,096.80 : 216,815.81 = 89,130.60 : x
  2. Step 2: Convert to fraction form
    157,096.80/216,815.81 = 89,130.60/x
  3. Step 3: Cross multiply
    157,096.80x = 216,815.81 × 89,130.60
  4. Step 4: Simplify right side
    157,096.80x = 19,324,922,789.13
  5. Step 5: Solve for x
    x = 19,324,922,789.13/157,096.80
  6. Step 6: Final answer
    x = 123,012.84

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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.