Home / 112,308.07-154,966.86-66,361.33

Finding the Fourth Proportional to 112,308.07, 154,966.86 and 66,361.33

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Solution

The fourth proportional to 112,308.07, 154,966.86 and 66,361.33 is: 91,567.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,308.07 : 154,966.86 = 66,361.33 : x
  2. Step 2: Convert to fraction form
    112,308.07/154,966.86 = 66,361.33/x
  3. Step 3: Cross multiply
    112,308.07x = 154,966.86 × 66,361.33
  4. Step 4: Simplify right side
    112,308.07x = 10,283,806,935.52
  5. Step 5: Solve for x
    x = 10,283,806,935.52/112,308.07
  6. Step 6: Final answer
    x = 91,567.84

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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.