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Finding the Fourth Proportional to 101,447.88, 140,002.20 and 56,125.08

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Solution

The fourth proportional to 101,447.88, 140,002.20 and 56,125.08 is: 77,454.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,447.88 : 140,002.20 = 56,125.08 : x
  2. Step 2: Convert to fraction form
    101,447.88/140,002.20 = 56,125.08/x
  3. Step 3: Cross multiply
    101,447.88x = 140,002.20 × 56,125.08
  4. Step 4: Simplify right side
    101,447.88x = 7,857,634,675.18
  5. Step 5: Solve for x
    x = 7,857,634,675.18/101,447.88
  6. Step 6: Final answer
    x = 77,454.89

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1.5x scale

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.