Home / 208,764.20-288,108.84-118,120.16

Finding the Fourth Proportional to 208,764.20, 288,108.84 and 118,120.16

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Solution

The fourth proportional to 208,764.20, 288,108.84 and 118,120.16 is: 163,013.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,764.20 : 288,108.84 = 118,120.16 : x
  2. Step 2: Convert to fraction form
    208,764.20/288,108.84 = 118,120.16/x
  3. Step 3: Cross multiply
    208,764.20x = 288,108.84 × 118,120.16
  4. Step 4: Simplify right side
    208,764.20x = 34,031,462,278.21
  5. Step 5: Solve for x
    x = 34,031,462,278.21/208,764.20
  6. Step 6: Final answer
    x = 163,013.88

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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.