Home / 104,115.15-143,678.73-56,368.50

Finding the Fourth Proportional to 104,115.15, 143,678.73 and 56,368.50

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Solution

The fourth proportional to 104,115.15, 143,678.73 and 56,368.50 is: 77,788.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,115.15 : 143,678.73 = 56,368.50 : x
  2. Step 2: Convert to fraction form
    104,115.15/143,678.73 = 56,368.50/x
  3. Step 3: Cross multiply
    104,115.15x = 143,678.73 × 56,368.50
  4. Step 4: Simplify right side
    104,115.15x = 8,098,954,492.01
  5. Step 5: Solve for x
    x = 8,098,954,492.01/104,115.15
  6. Step 6: Final answer
    x = 77,788.43

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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.