Home / 140,208.90-193,488.94-76,548.16

Finding the Fourth Proportional to 140,208.90, 193,488.94 and 76,548.16

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Solution

The fourth proportional to 140,208.90, 193,488.94 and 76,548.16 is: 105,636.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,208.90 : 193,488.94 = 76,548.16 : x
  2. Step 2: Convert to fraction form
    140,208.90/193,488.94 = 76,548.16/x
  3. Step 3: Cross multiply
    140,208.90x = 193,488.94 × 76,548.16
  4. Step 4: Simplify right side
    140,208.90x = 14,811,222,337.35
  5. Step 5: Solve for x
    x = 14,811,222,337.35/140,208.90
  6. Step 6: Final answer
    x = 105,636.82

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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.