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Finding the Fourth Proportional to 144,339.63, 199,185.15 and 79,807.17

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Solution

The fourth proportional to 144,339.63, 199,185.15 and 79,807.17 is: 110,131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,339.63 : 199,185.15 = 79,807.17 : x
  2. Step 2: Convert to fraction form
    144,339.63/199,185.15 = 79,807.17/x
  3. Step 3: Cross multiply
    144,339.63x = 199,185.15 × 79,807.17
  4. Step 4: Simplify right side
    144,339.63x = 15,896,402,268.66
  5. Step 5: Solve for x
    x = 15,896,402,268.66/144,339.63
  6. Step 6: Final answer
    x = 110,131.93

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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.