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Finding the Fourth Proportional to 108,001.30, 162,001.95 and 68,602.90

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Solution

The fourth proportional to 108,001.30, 162,001.95 and 68,602.90 is: 102,904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,001.30 : 162,001.95 = 68,602.90 : x
  2. Step 2: Convert to fraction form
    108,001.30/162,001.95 = 68,602.90/x
  3. Step 3: Cross multiply
    108,001.30x = 162,001.95 × 68,602.90
  4. Step 4: Simplify right side
    108,001.30x = 11,113,803,575.66
  5. Step 5: Solve for x
    x = 11,113,803,575.66/108,001.30
  6. Step 6: Final answer
    x = 102,904.35

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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.