Home / 142,855.56-214,319.04-100,817.70

Finding the Fourth Proportional to 142,855.56, 214,319.04 and 100,817.70

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Solution

The fourth proportional to 142,855.56, 214,319.04 and 100,817.70 is: 151,251.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,855.56 : 214,319.04 = 100,817.70 : x
  2. Step 2: Convert to fraction form
    142,855.56/214,319.04 = 100,817.70/x
  3. Step 3: Cross multiply
    142,855.56x = 214,319.04 × 100,817.70
  4. Step 4: Simplify right side
    142,855.56x = 21,607,152,679.01
  5. Step 5: Solve for x
    x = 21,607,152,679.01/142,855.56
  6. Step 6: Final answer
    x = 151,251.74

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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.