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Finding the Fourth Proportional to 144,232.32, 199,040.11 and 79,699.76

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Solution

The fourth proportional to 144,232.32, 199,040.11 and 79,699.76 is: 109,985.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,232.32 : 199,040.11 = 79,699.76 : x
  2. Step 2: Convert to fraction form
    144,232.32/199,040.11 = 79,699.76/x
  3. Step 3: Cross multiply
    144,232.32x = 199,040.11 × 79,699.76
  4. Step 4: Simplify right side
    144,232.32x = 15,863,448,798.12
  5. Step 5: Solve for x
    x = 15,863,448,798.12/144,232.32
  6. Step 6: Final answer
    x = 109,985.39

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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.