Home / 103,925.21-143,416.80-56,178.56

Finding the Fourth Proportional to 103,925.21, 143,416.80 and 56,178.56

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Solution

The fourth proportional to 103,925.21, 143,416.80 and 56,178.56 is: 77,526.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,925.21 : 143,416.80 = 56,178.56 : x
  2. Step 2: Convert to fraction form
    103,925.21/143,416.80 = 56,178.56/x
  3. Step 3: Cross multiply
    103,925.21x = 143,416.80 × 56,178.56
  4. Step 4: Simplify right side
    103,925.21x = 8,056,949,464.85
  5. Step 5: Solve for x
    x = 8,056,949,464.85/103,925.21
  6. Step 6: Final answer
    x = 77,526.42

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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.