Home / 197,120.63-272,075.07-112,287.71

Finding the Fourth Proportional to 197,120.63, 272,075.07 and 112,287.71

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Solution

The fourth proportional to 197,120.63, 272,075.07 and 112,287.71 is: 154,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,120.63 : 272,075.07 = 112,287.71 : x
  2. Step 2: Convert to fraction form
    197,120.63/272,075.07 = 112,287.71/x
  3. Step 3: Cross multiply
    197,120.63x = 272,075.07 × 112,287.71
  4. Step 4: Simplify right side
    197,120.63x = 30,550,686,558.39
  5. Step 5: Solve for x
    x = 30,550,686,558.39/197,120.63
  6. Step 6: Final answer
    x = 154,984.72

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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.