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Finding the Fourth Proportional to 101,808.34, 140,492.88 and 56,486.14

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Solution

The fourth proportional to 101,808.34, 140,492.88 and 56,486.14 is: 77,949.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,808.34 : 140,492.88 = 56,486.14 : x
  2. Step 2: Convert to fraction form
    101,808.34/140,492.88 = 56,486.14/x
  3. Step 3: Cross multiply
    101,808.34x = 140,492.88 × 56,486.14
  4. Step 4: Simplify right side
    101,808.34x = 7,935,900,488.68
  5. Step 5: Solve for x
    x = 7,935,900,488.68/101,808.34
  6. Step 6: Final answer
    x = 77,949.41

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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.