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Finding the Fourth Proportional to 101,830.36, 140,526.66 and 56,508.52

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Solution

The fourth proportional to 101,830.36, 140,526.66 and 56,508.52 is: 77,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,830.36 : 140,526.66 = 56,508.52 : x
  2. Step 2: Convert to fraction form
    101,830.36/140,526.66 = 56,508.52/x
  3. Step 3: Cross multiply
    101,830.36x = 140,526.66 × 56,508.52
  4. Step 4: Simplify right side
    101,830.36x = 7,940,953,577.14
  5. Step 5: Solve for x
    x = 7,940,953,577.14/101,830.36
  6. Step 6: Final answer
    x = 77,982.18

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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.