Home / 203,030.42-280,178.58-112,384.43

Finding the Fourth Proportional to 203,030.42, 280,178.58 and 112,384.43

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Solution

The fourth proportional to 203,030.42, 280,178.58 and 112,384.43 is: 155,088.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,030.42 : 280,178.58 = 112,384.43 : x
  2. Step 2: Convert to fraction form
    203,030.42/280,178.58 = 112,384.43/x
  3. Step 3: Cross multiply
    203,030.42x = 280,178.58 × 112,384.43
  4. Step 4: Simplify right side
    203,030.42x = 31,487,711,342.65
  5. Step 5: Solve for x
    x = 31,487,711,342.65/203,030.42
  6. Step 6: Final answer
    x = 155,088.64

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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.