Home / 144,330.36-199,172.45-80,674.08

Finding the Fourth Proportional to 144,330.36, 199,172.45 and 80,674.08

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Solution

The fourth proportional to 144,330.36, 199,172.45 and 80,674.08 is: 111,328.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,330.36 : 199,172.45 = 80,674.08 : x
  2. Step 2: Convert to fraction form
    144,330.36/199,172.45 = 80,674.08/x
  3. Step 3: Cross multiply
    144,330.36x = 199,172.45 × 80,674.08
  4. Step 4: Simplify right side
    144,330.36x = 16,068,054,165.10
  5. Step 5: Solve for x
    x = 16,068,054,165.10/144,330.36
  6. Step 6: Final answer
    x = 111,328.30

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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.