Home / 144,235.49-199,031.80-80,564.45

Finding the Fourth Proportional to 144,235.49, 199,031.80 and 80,564.45

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Solution

The fourth proportional to 144,235.49, 199,031.80 and 80,564.45 is: 111,171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,235.49 : 199,031.80 = 80,564.45 : x
  2. Step 2: Convert to fraction form
    144,235.49/199,031.80 = 80,564.45/x
  3. Step 3: Cross multiply
    144,235.49x = 199,031.80 × 80,564.45
  4. Step 4: Simplify right side
    144,235.49x = 16,034,887,499.51
  5. Step 5: Solve for x
    x = 16,034,887,499.51/144,235.49
  6. Step 6: Final answer
    x = 111,171.58

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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.