Home / 137,973.44-190,419.08-76,725.69

Finding the Fourth Proportional to 137,973.44, 190,419.08 and 76,725.69

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Solution

The fourth proportional to 137,973.44, 190,419.08 and 76,725.69 is: 105,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,973.44 : 190,419.08 = 76,725.69 : x
  2. Step 2: Convert to fraction form
    137,973.44/190,419.08 = 76,725.69/x
  3. Step 3: Cross multiply
    137,973.44x = 190,419.08 × 76,725.69
  4. Step 4: Simplify right side
    137,973.44x = 14,610,035,302.17
  5. Step 5: Solve for x
    x = 14,610,035,302.17/137,973.44
  6. Step 6: Final answer
    x = 105,890.20

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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.