Home / 203,008.97-280,145.23-112,365.11

Finding the Fourth Proportional to 203,008.97, 280,145.23 and 112,365.11

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Solution

The fourth proportional to 203,008.97, 280,145.23 and 112,365.11 is: 155,059.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,008.97 : 280,145.23 = 112,365.11 : x
  2. Step 2: Convert to fraction form
    203,008.97/280,145.23 = 112,365.11/x
  3. Step 3: Cross multiply
    203,008.97x = 280,145.23 × 112,365.11
  4. Step 4: Simplify right side
    203,008.97x = 31,478,547,903.29
  5. Step 5: Solve for x
    x = 31,478,547,903.29/203,008.97
  6. Step 6: Final answer
    x = 155,059.89

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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.