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Finding the Fourth Proportional to 100,363.38, 150,570.40 and 70,838.88

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Solution

The fourth proportional to 100,363.38, 150,570.40 and 70,838.88 is: 106,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,363.38 : 150,570.40 = 70,838.88 : x
  2. Step 2: Convert to fraction form
    100,363.38/150,570.40 = 70,838.88/x
  3. Step 3: Cross multiply
    100,363.38x = 150,570.40 × 70,838.88
  4. Step 4: Simplify right side
    100,363.38x = 10,666,238,497.15
  5. Step 5: Solve for x
    x = 10,666,238,497.15/100,363.38
  6. Step 6: Final answer
    x = 106,276.20

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1.5x scale

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.