Home / 144,301.32-199,140.06-80,639.27

Finding the Fourth Proportional to 144,301.32, 199,140.06 and 80,639.27

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Solution

The fourth proportional to 144,301.32, 199,140.06 and 80,639.27 is: 111,284.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,301.32 : 199,140.06 = 80,639.27 : x
  2. Step 2: Convert to fraction form
    144,301.32/199,140.06 = 80,639.27/x
  3. Step 3: Cross multiply
    144,301.32x = 199,140.06 × 80,639.27
  4. Step 4: Simplify right side
    144,301.32x = 16,058,508,070.46
  5. Step 5: Solve for x
    x = 16,058,508,070.46/144,301.32
  6. Step 6: Final answer
    x = 111,284.55

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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.