Home / 118,239.48-177,421.50-68,354.61

Finding the Fourth Proportional to 118,239.48, 177,421.50 and 68,354.61

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Solution

The fourth proportional to 118,239.48, 177,421.50 and 68,354.61 is: 102,567.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,239.48 : 177,421.50 = 68,354.61 : x
  2. Step 2: Convert to fraction form
    118,239.48/177,421.50 = 68,354.61/x
  3. Step 3: Cross multiply
    118,239.48x = 177,421.50 × 68,354.61
  4. Step 4: Simplify right side
    118,239.48x = 12,127,577,710.78
  5. Step 5: Solve for x
    x = 12,127,577,710.78/118,239.48
  6. Step 6: Final answer
    x = 102,567.92

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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.