Home / 140,068.09-193,295.36-76,407.22

Finding the Fourth Proportional to 140,068.09, 193,295.36 and 76,407.22

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Solution

The fourth proportional to 140,068.09, 193,295.36 and 76,407.22 is: 105,442.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,068.09 : 193,295.36 = 76,407.22 : x
  2. Step 2: Convert to fraction form
    140,068.09/193,295.36 = 76,407.22/x
  3. Step 3: Cross multiply
    140,068.09x = 193,295.36 × 76,407.22
  4. Step 4: Simplify right side
    140,068.09x = 14,769,161,096.50
  5. Step 5: Solve for x
    x = 14,769,161,096.50/140,068.09
  6. Step 6: Final answer
    x = 105,442.73

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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.