Home / 140,987.90-194,563.34-76,457.11

Finding the Fourth Proportional to 140,987.90, 194,563.34 and 76,457.11

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Solution

The fourth proportional to 140,987.90, 194,563.34 and 76,457.11 is: 105,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,987.90 : 194,563.34 = 76,457.11 : x
  2. Step 2: Convert to fraction form
    140,987.90/194,563.34 = 76,457.11/x
  3. Step 3: Cross multiply
    140,987.90x = 194,563.34 × 76,457.11
  4. Step 4: Simplify right side
    140,987.90x = 14,875,750,688.35
  5. Step 5: Solve for x
    x = 14,875,750,688.35/140,987.90
  6. Step 6: Final answer
    x = 105,510.83

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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.