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Finding the Fourth Proportional to 101,477.90, 142,380.10 and 101,477.90

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Solution

The fourth proportional to 101,477.90, 142,380.10 and 101,477.90 is: 142,380.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,477.90 : 142,380.10 = 101,477.90 : x
  2. Step 2: Convert to fraction form
    101,477.90/142,380.10 = 101,477.90/x
  3. Step 3: Cross multiply
    101,477.90x = 142,380.10 × 101,477.90
  4. Step 4: Simplify right side
    101,477.90x = 14,448,433,549.79
  5. Step 5: Solve for x
    x = 14,448,433,549.79/101,477.90
  6. Step 6: Final answer
    x = 142,380.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.