Home / 144,365.09-199,220.51-80,708.81

Finding the Fourth Proportional to 144,365.09, 199,220.51 and 80,708.81

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Solution

The fourth proportional to 144,365.09, 199,220.51 and 80,708.81 is: 111,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,365.09 : 199,220.51 = 80,708.81 : x
  2. Step 2: Convert to fraction form
    144,365.09/199,220.51 = 80,708.81/x
  3. Step 3: Cross multiply
    144,365.09x = 199,220.51 × 80,708.81
  4. Step 4: Simplify right side
    144,365.09x = 16,078,849,495.36
  5. Step 5: Solve for x
    x = 16,078,849,495.36/144,365.09
  6. Step 6: Final answer
    x = 111,376.30

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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.