Home / 266,536.08-399,607.20-126,130.32

Finding the Fourth Proportional to 266,536.08, 399,607.20 and 126,130.32

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Solution

The fourth proportional to 266,536.08, 399,607.20 and 126,130.32 is: 189,102.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,536.08 : 399,607.20 = 126,130.32 : x
  2. Step 2: Convert to fraction form
    266,536.08/399,607.20 = 126,130.32/x
  3. Step 3: Cross multiply
    266,536.08x = 399,607.20 × 126,130.32
  4. Step 4: Simplify right side
    266,536.08x = 50,402,584,010.30
  5. Step 5: Solve for x
    x = 50,402,584,010.30/266,536.08
  6. Step 6: Final answer
    x = 189,102.29

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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.