Home / 140,084.28-193,316.76-76,423.41

Finding the Fourth Proportional to 140,084.28, 193,316.76 and 76,423.41

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Solution

The fourth proportional to 140,084.28, 193,316.76 and 76,423.41 is: 105,464.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,084.28 : 193,316.76 = 76,423.41 : x
  2. Step 2: Convert to fraction form
    140,084.28/193,316.76 = 76,423.41/x
  3. Step 3: Cross multiply
    140,084.28x = 193,316.76 × 76,423.41
  4. Step 4: Simplify right side
    140,084.28x = 14,773,926,009.35
  5. Step 5: Solve for x
    x = 14,773,926,009.35/140,084.28
  6. Step 6: Final answer
    x = 105,464.55

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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.