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Finding the Fourth Proportional to 127,874.78, 176,477.70 and 70,525.32

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Solution

The fourth proportional to 127,874.78, 176,477.70 and 70,525.32 is: 97,330.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,874.78 : 176,477.70 = 70,525.32 : x
  2. Step 2: Convert to fraction form
    127,874.78/176,477.70 = 70,525.32/x
  3. Step 3: Cross multiply
    127,874.78x = 176,477.70 × 70,525.32
  4. Step 4: Simplify right side
    127,874.78x = 12,446,146,265.36
  5. Step 5: Solve for x
    x = 12,446,146,265.36/127,874.78
  6. Step 6: Final answer
    x = 97,330.73

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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.