Home / 103,998.60-143,518.08-56,251.92

Finding the Fourth Proportional to 103,998.60, 143,518.08 and 56,251.92

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Solution

The fourth proportional to 103,998.60, 143,518.08 and 56,251.92 is: 77,627.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,998.60 : 143,518.08 = 56,251.92 : x
  2. Step 2: Convert to fraction form
    103,998.60/143,518.08 = 56,251.92/x
  3. Step 3: Cross multiply
    103,998.60x = 143,518.08 × 56,251.92
  4. Step 4: Simplify right side
    103,998.60x = 8,073,167,554.71
  5. Step 5: Solve for x
    x = 8,073,167,554.71/103,998.60
  6. Step 6: Final answer
    x = 77,627.66

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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.