Home / 140,339.36-193,666.05-76,675.79

Finding the Fourth Proportional to 140,339.36, 193,666.05 and 76,675.79

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Solution

The fourth proportional to 140,339.36, 193,666.05 and 76,675.79 is: 105,811.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,339.36 : 193,666.05 = 76,675.79 : x
  2. Step 2: Convert to fraction form
    140,339.36/193,666.05 = 76,675.79/x
  3. Step 3: Cross multiply
    140,339.36x = 193,666.05 × 76,675.79
  4. Step 4: Simplify right side
    140,339.36x = 14,849,497,379.93
  5. Step 5: Solve for x
    x = 14,849,497,379.93/140,339.36
  6. Step 6: Final answer
    x = 105,811.35

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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.