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Finding the Fourth Proportional to 155,027.90, 213,881.10 and 97,651.82

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Solution

The fourth proportional to 155,027.90, 213,881.10 and 97,651.82 is: 134,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,027.90 : 213,881.10 = 97,651.82 : x
  2. Step 2: Convert to fraction form
    155,027.90/213,881.10 = 97,651.82/x
  3. Step 3: Cross multiply
    155,027.90x = 213,881.10 × 97,651.82
  4. Step 4: Simplify right side
    155,027.90x = 20,885,878,678.60
  5. Step 5: Solve for x
    x = 20,885,878,678.60/155,027.90
  6. Step 6: Final answer
    x = 134,723.35

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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.