Home / 143,646.85-215,462.08-54,909.33

Finding the Fourth Proportional to 143,646.85, 215,462.08 and 54,909.33

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Solution

The fourth proportional to 143,646.85, 215,462.08 and 54,909.33 is: 82,360.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,646.85 : 215,462.08 = 54,909.33 : x
  2. Step 2: Convert to fraction form
    143,646.85/215,462.08 = 54,909.33/x
  3. Step 3: Cross multiply
    143,646.85x = 215,462.08 × 54,909.33
  4. Step 4: Simplify right side
    143,646.85x = 11,830,877,405.00
  5. Step 5: Solve for x
    x = 11,830,877,405.00/143,646.85
  6. Step 6: Final answer
    x = 82,360.85

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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.