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Finding the Fourth Proportional to 100,360.26, 150,565.70 and 70,835.76

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Solution

The fourth proportional to 100,360.26, 150,565.70 and 70,835.76 is: 106,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,360.26 : 150,565.70 = 70,835.76 : x
  2. Step 2: Convert to fraction form
    100,360.26/150,565.70 = 70,835.76/x
  3. Step 3: Cross multiply
    100,360.26x = 150,565.70 × 70,835.76
  4. Step 4: Simplify right side
    100,360.26x = 10,665,435,966.52
  5. Step 5: Solve for x
    x = 10,665,435,966.52/100,360.26
  6. Step 6: Final answer
    x = 106,271.51

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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.