Home / 142,786.60-214,190.46-42,938.68

Finding the Fourth Proportional to 142,786.60, 214,190.46 and 42,938.68

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Solution

The fourth proportional to 142,786.60, 214,190.46 and 42,938.68 is: 64,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,786.60 : 214,190.46 = 42,938.68 : x
  2. Step 2: Convert to fraction form
    142,786.60/214,190.46 = 42,938.68/x
  3. Step 3: Cross multiply
    142,786.60x = 214,190.46 × 42,938.68
  4. Step 4: Simplify right side
    142,786.60x = 9,197,055,620.99
  5. Step 5: Solve for x
    x = 9,197,055,620.99/142,786.60
  6. Step 6: Final answer
    x = 64,411.20

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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.