Home / 145,945.07-218,917.61-67,125.59

Finding the Fourth Proportional to 145,945.07, 218,917.61 and 67,125.59

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Solution

The fourth proportional to 145,945.07, 218,917.61 and 67,125.59 is: 100,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,945.07 : 218,917.61 = 67,125.59 : x
  2. Step 2: Convert to fraction form
    145,945.07/218,917.61 = 67,125.59/x
  3. Step 3: Cross multiply
    145,945.07x = 218,917.61 × 67,125.59
  4. Step 4: Simplify right side
    145,945.07x = 14,694,973,732.64
  5. Step 5: Solve for x
    x = 14,694,973,732.64/145,945.07
  6. Step 6: Final answer
    x = 100,688.39

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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.