Home / 203,538.35-280,873.02-112,886.29

Finding the Fourth Proportional to 203,538.35, 280,873.02 and 112,886.29

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Solution

The fourth proportional to 203,538.35, 280,873.02 and 112,886.29 is: 155,777.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,538.35 : 280,873.02 = 112,886.29 : x
  2. Step 2: Convert to fraction form
    203,538.35/280,873.02 = 112,886.29/x
  3. Step 3: Cross multiply
    203,538.35x = 280,873.02 × 112,886.29
  4. Step 4: Simplify right side
    203,538.35x = 31,706,711,784.53
  5. Step 5: Solve for x
    x = 31,706,711,784.53/203,538.35
  6. Step 6: Final answer
    x = 155,777.58

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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.