Home / 100,913.28-151,384.59-30,783.48

Finding the Fourth Proportional to 100,913.28, 151,384.59 and 30,783.48

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Solution

The fourth proportional to 100,913.28, 151,384.59 and 30,783.48 is: 46,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,913.28 : 151,384.59 = 30,783.48 : x
  2. Step 2: Convert to fraction form
    100,913.28/151,384.59 = 30,783.48/x
  3. Step 3: Cross multiply
    100,913.28x = 151,384.59 × 30,783.48
  4. Step 4: Simplify right side
    100,913.28x = 4,660,144,498.57
  5. Step 5: Solve for x
    x = 4,660,144,498.57/100,913.28
  6. Step 6: Final answer
    x = 46,179.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.