Home / 140,207.81-193,477.77-76,545.47

Finding the Fourth Proportional to 140,207.81, 193,477.77 and 76,545.47

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Solution

The fourth proportional to 140,207.81, 193,477.77 and 76,545.47 is: 105,627.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,207.81 : 193,477.77 = 76,545.47 : x
  2. Step 2: Convert to fraction form
    140,207.81/193,477.77 = 76,545.47/x
  3. Step 3: Cross multiply
    140,207.81x = 193,477.77 × 76,545.47
  4. Step 4: Simplify right side
    140,207.81x = 14,809,846,839.20
  5. Step 5: Solve for x
    x = 14,809,846,839.20/140,207.81
  6. Step 6: Final answer
    x = 105,627.83

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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.