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Finding the Fourth Proportional to 144,277.40, 199,101.72 and 79,750.87

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Solution

The fourth proportional to 144,277.40, 199,101.72 and 79,750.87 is: 110,055.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,277.40 : 199,101.72 = 79,750.87 : x
  2. Step 2: Convert to fraction form
    144,277.40/199,101.72 = 79,750.87/x
  3. Step 3: Cross multiply
    144,277.40x = 199,101.72 × 79,750.87
  4. Step 4: Simplify right side
    144,277.40x = 15,878,534,989.74
  5. Step 5: Solve for x
    x = 15,878,534,989.74/144,277.40
  6. Step 6: Final answer
    x = 110,055.60

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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.