Home / 140,167.89-193,428.63-76,506.75

Finding the Fourth Proportional to 140,167.89, 193,428.63 and 76,506.75

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Solution

The fourth proportional to 140,167.89, 193,428.63 and 76,506.75 is: 105,577.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,167.89 : 193,428.63 = 76,506.75 : x
  2. Step 2: Convert to fraction form
    140,167.89/193,428.63 = 76,506.75/x
  3. Step 3: Cross multiply
    140,167.89x = 193,428.63 × 76,506.75
  4. Step 4: Simplify right side
    140,167.89x = 14,798,595,838.25
  5. Step 5: Solve for x
    x = 14,798,595,838.25/140,167.89
  6. Step 6: Final answer
    x = 105,577.65

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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.