Home / 440,909.14-661,243.58-120,985.16

Finding the Fourth Proportional to 440,909.14, 661,243.58 and 120,985.16

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Solution

The fourth proportional to 440,909.14, 661,243.58 and 120,985.16 is: 181,444.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,909.14 : 661,243.58 = 120,985.16 : x
  2. Step 2: Convert to fraction form
    440,909.14/661,243.58 = 120,985.16/x
  3. Step 3: Cross multiply
    440,909.14x = 661,243.58 × 120,985.16
  4. Step 4: Simplify right side
    440,909.14x = 80,000,660,587.32
  5. Step 5: Solve for x
    x = 80,000,660,587.32/440,909.14
  6. Step 6: Final answer
    x = 181,444.78

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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.