Home / 111,636.90-167,312.67-52,341.78

Finding the Fourth Proportional to 111,636.90, 167,312.67 and 52,341.78

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Solution

The fourth proportional to 111,636.90, 167,312.67 and 52,341.78 is: 78,445.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,636.90 : 167,312.67 = 52,341.78 : x
  2. Step 2: Convert to fraction form
    111,636.90/167,312.67 = 52,341.78/x
  3. Step 3: Cross multiply
    111,636.90x = 167,312.67 × 52,341.78
  4. Step 4: Simplify right side
    111,636.90x = 8,757,442,964.35
  5. Step 5: Solve for x
    x = 8,757,442,964.35/111,636.90
  6. Step 6: Final answer
    x = 78,445.77

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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.