Home / 197,107.95-272,009.25-112,225.08

Finding the Fourth Proportional to 197,107.95, 272,009.25 and 112,225.08

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Solution

The fourth proportional to 197,107.95, 272,009.25 and 112,225.08 is: 154,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,107.95 : 272,009.25 = 112,225.08 : x
  2. Step 2: Convert to fraction form
    197,107.95/272,009.25 = 112,225.08/x
  3. Step 3: Cross multiply
    197,107.95x = 272,009.25 × 112,225.08
  4. Step 4: Simplify right side
    197,107.95x = 30,526,259,841.99
  5. Step 5: Solve for x
    x = 30,526,259,841.99/197,107.95
  6. Step 6: Final answer
    x = 154,870.77

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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.