Home / 104,178.12-143,766.48-56,431.45

Finding the Fourth Proportional to 104,178.12, 143,766.48 and 56,431.45

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Solution

The fourth proportional to 104,178.12, 143,766.48 and 56,431.45 is: 77,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,178.12 : 143,766.48 = 56,431.45 : x
  2. Step 2: Convert to fraction form
    104,178.12/143,766.48 = 56,431.45/x
  3. Step 3: Cross multiply
    104,178.12x = 143,766.48 × 56,431.45
  4. Step 4: Simplify right side
    104,178.12x = 8,112,951,319.12
  5. Step 5: Solve for x
    x = 8,112,951,319.12/104,178.12
  6. Step 6: Final answer
    x = 77,875.77

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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.