Home / 203,421.42-280,695.60-112,776.55

Finding the Fourth Proportional to 203,421.42, 280,695.60 and 112,776.55

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Solution

The fourth proportional to 203,421.42, 280,695.60 and 112,776.55 is: 155,617.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,421.42 : 280,695.60 = 112,776.55 : x
  2. Step 2: Convert to fraction form
    203,421.42/280,695.60 = 112,776.55/x
  3. Step 3: Cross multiply
    203,421.42x = 280,695.60 × 112,776.55
  4. Step 4: Simplify right side
    203,421.42x = 31,655,880,666.44
  5. Step 5: Solve for x
    x = 31,655,880,666.44/203,421.42
  6. Step 6: Final answer
    x = 155,617.24

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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.