Home / 143,698.32-215,022.60-84,561.84

Finding the Fourth Proportional to 143,698.32, 215,022.60 and 84,561.84

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Solution

The fourth proportional to 143,698.32, 215,022.60 and 84,561.84 is: 126,533.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,698.32 : 215,022.60 = 84,561.84 : x
  2. Step 2: Convert to fraction form
    143,698.32/215,022.60 = 84,561.84/x
  3. Step 3: Cross multiply
    143,698.32x = 215,022.60 × 84,561.84
  4. Step 4: Simplify right side
    143,698.32x = 18,182,706,697.58
  5. Step 5: Solve for x
    x = 18,182,706,697.58/143,698.32
  6. Step 6: Final answer
    x = 126,533.89

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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.