Home / 104,185.36-143,775.65-56,438.89

Finding the Fourth Proportional to 104,185.36, 143,775.65 and 56,438.89

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Solution

The fourth proportional to 104,185.36, 143,775.65 and 56,438.89 is: 77,885.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,185.36 : 143,775.65 = 56,438.89 : x
  2. Step 2: Convert to fraction form
    104,185.36/143,775.65 = 56,438.89/x
  3. Step 3: Cross multiply
    104,185.36x = 143,775.65 × 56,438.89
  4. Step 4: Simplify right side
    104,185.36x = 8,114,538,095.03
  5. Step 5: Solve for x
    x = 8,114,538,095.03/104,185.36
  6. Step 6: Final answer
    x = 77,885.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.