Home / 137,868.21-190,253.98-76,614.19

Finding the Fourth Proportional to 137,868.21, 190,253.98 and 76,614.19

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Solution

The fourth proportional to 137,868.21, 190,253.98 and 76,614.19 is: 105,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,868.21 : 190,253.98 = 76,614.19 : x
  2. Step 2: Convert to fraction form
    137,868.21/190,253.98 = 76,614.19/x
  3. Step 3: Cross multiply
    137,868.21x = 190,253.98 × 76,614.19
  4. Step 4: Simplify right side
    137,868.21x = 14,576,154,096.34
  5. Step 5: Solve for x
    x = 14,576,154,096.34/137,868.21
  6. Step 6: Final answer
    x = 105,725.28

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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.