Home / 140,055.15-209,984.28-51,297.12

Finding the Fourth Proportional to 140,055.15, 209,984.28 and 51,297.12

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Solution

The fourth proportional to 140,055.15, 209,984.28 and 51,297.12 is: 76,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,055.15 : 209,984.28 = 51,297.12 : x
  2. Step 2: Convert to fraction form
    140,055.15/209,984.28 = 51,297.12/x
  3. Step 3: Cross multiply
    140,055.15x = 209,984.28 × 51,297.12
  4. Step 4: Simplify right side
    140,055.15x = 10,771,588,809.27
  5. Step 5: Solve for x
    x = 10,771,588,809.27/140,055.15
  6. Step 6: Final answer
    x = 76,909.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.