Home / 197,409.06-272,417.26-112,509.72

Finding the Fourth Proportional to 197,409.06, 272,417.26 and 112,509.72

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Solution

The fourth proportional to 197,409.06, 272,417.26 and 112,509.72 is: 155,259.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,409.06 : 272,417.26 = 112,509.72 : x
  2. Step 2: Convert to fraction form
    197,409.06/272,417.26 = 112,509.72/x
  3. Step 3: Cross multiply
    197,409.06x = 272,417.26 × 112,509.72
  4. Step 4: Simplify right side
    197,409.06x = 30,649,589,645.77
  5. Step 5: Solve for x
    x = 30,649,589,645.77/197,409.06
  6. Step 6: Final answer
    x = 155,259.29

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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.