Home / 140,343.13-193,677.77-76,685.03

Finding the Fourth Proportional to 140,343.13, 193,677.77 and 76,685.03

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Solution

The fourth proportional to 140,343.13, 193,677.77 and 76,685.03 is: 105,827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,343.13 : 193,677.77 = 76,685.03 : x
  2. Step 2: Convert to fraction form
    140,343.13/193,677.77 = 76,685.03/x
  3. Step 3: Cross multiply
    140,343.13x = 193,677.77 × 76,685.03
  4. Step 4: Simplify right side
    140,343.13x = 14,852,184,250.97
  5. Step 5: Solve for x
    x = 14,852,184,250.97/140,343.13
  6. Step 6: Final answer
    x = 105,827.66

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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.