Home / 145,066.86-217,667.25-66,205.26

Finding the Fourth Proportional to 145,066.86, 217,667.25 and 66,205.26

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Solution

The fourth proportional to 145,066.86, 217,667.25 and 66,205.26 is: 99,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,066.86 : 217,667.25 = 66,205.26 : x
  2. Step 2: Convert to fraction form
    145,066.86/217,667.25 = 66,205.26/x
  3. Step 3: Cross multiply
    145,066.86x = 217,667.25 × 66,205.26
  4. Step 4: Simplify right side
    145,066.86x = 14,410,716,879.74
  5. Step 5: Solve for x
    x = 14,410,716,879.74/145,066.86
  6. Step 6: Final answer
    x = 99,338.45

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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.