Home / 143,643.04-215,392.44-83,690.92

Finding the Fourth Proportional to 143,643.04, 215,392.44 and 83,690.92

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Solution

The fourth proportional to 143,643.04, 215,392.44 and 83,690.92 is: 125,494.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,643.04 : 215,392.44 = 83,690.92 : x
  2. Step 2: Convert to fraction form
    143,643.04/215,392.44 = 83,690.92/x
  3. Step 3: Cross multiply
    143,643.04x = 215,392.44 × 83,690.92
  4. Step 4: Simplify right side
    143,643.04x = 18,026,391,464.64
  5. Step 5: Solve for x
    x = 18,026,391,464.64/143,643.04
  6. Step 6: Final answer
    x = 125,494.36

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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.