Home / 203,001.12-280,142.10-112,363.34

Finding the Fourth Proportional to 203,001.12, 280,142.10 and 112,363.34

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Solution

The fourth proportional to 203,001.12, 280,142.10 and 112,363.34 is: 155,061.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,001.12 : 280,142.10 = 112,363.34 : x
  2. Step 2: Convert to fraction form
    203,001.12/280,142.10 = 112,363.34/x
  3. Step 3: Cross multiply
    203,001.12x = 280,142.10 × 112,363.34
  4. Step 4: Simplify right side
    203,001.12x = 31,477,700,629.90
  5. Step 5: Solve for x
    x = 31,477,700,629.90/203,001.12
  6. Step 6: Final answer
    x = 155,061.71

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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.