Home / 203,041.40-280,103.28-131,444.60

Finding the Fourth Proportional to 203,041.40, 280,103.28 and 131,444.60

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Solution

The fourth proportional to 203,041.40, 280,103.28 and 131,444.60 is: 181,332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,041.40 : 280,103.28 = 131,444.60 : x
  2. Step 2: Convert to fraction form
    203,041.40/280,103.28 = 131,444.60/x
  3. Step 3: Cross multiply
    203,041.40x = 280,103.28 × 131,444.60
  4. Step 4: Simplify right side
    203,041.40x = 36,818,063,598.29
  5. Step 5: Solve for x
    x = 36,818,063,598.29/203,041.40
  6. Step 6: Final answer
    x = 181,332.79

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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.