Home / 143,645.04-215,395.47-83,692.89

Finding the Fourth Proportional to 143,645.04, 215,395.47 and 83,692.89

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Solution

The fourth proportional to 143,645.04, 215,395.47 and 83,692.89 is: 125,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,645.04 : 215,395.47 = 83,692.89 : x
  2. Step 2: Convert to fraction form
    143,645.04/215,395.47 = 83,692.89/x
  3. Step 3: Cross multiply
    143,645.04x = 215,395.47 × 83,692.89
  4. Step 4: Simplify right side
    143,645.04x = 18,027,069,377.21
  5. Step 5: Solve for x
    x = 18,027,069,377.21/143,645.04
  6. Step 6: Final answer
    x = 125,497.33

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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.