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Finding the Fourth Proportional to 88,461, 132,730.58 and 68,642.69

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Solution

The fourth proportional to 88,461, 132,730.58 and 68,642.69 is: 102,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,461 : 132,730.58 = 68,642.69 : x
  2. Step 2: Convert to fraction form
    88,461/132,730.58 = 68,642.69/x
  3. Step 3: Cross multiply
    88,461x = 132,730.58 × 68,642.69
  4. Step 4: Simplify right side
    88,461x = 9,110,983,049.59
  5. Step 5: Solve for x
    x = 9,110,983,049.59/88,461
  6. Step 6: Final answer
    x = 102,994.35

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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.